Lucifer Morningstar, the retired ruler of Hell, owns a high-end night club named "Lux" in Los Angeles. When a pop star he had helped become successful is murdered in front of him by a drug dealer, he uses his powers of persuasion to assist Detective Chloe Decker in apprehending the true culprit behind the murder. All the while, he must deal with his brother, the dark-winged angel Amenadiel, who is putting pressure on him from their father to return to running Hell, after having abandoned the task for the past five years.
Lucifer undergoes the legal procedure to become an official civilian consultant. With Chloe recovering from their last adventure, Lucifer takes the initiative to get the truth about the death of an actor's son from a paparazzo who has confessed to causing the car crash. During the case, Lucifer learns how Chloe abandoned acting due to the death of her father.
Lucifer attends the party of virgin football player Ty Huntley, convincing him to accept a girl's invitation to sleep together. Lucifer is woken after a foursome by Ty, who asks for a favor; he calls in Chloe, revealing the girl was found dead. Her phone reveals footage of Ty and the victim having sex; Chloe arrests Ty on circumstantial evidence.
Chloe and Lucifer investigate a missing persons case involving a girl, Lindsay Jolson, who was involved with a pick-up artist. The investigation is complicated by Lucifer's repeated attempts to seduce Chloe in an effort to better understand her
Chloe begs Lucifer to help her in a case involving an artist/high-end shoe designer who was once in a street gang. In doing so, Lucifer knowingly puts himself in danger, finding it exciting to test his mortality. It turns out that the death at the shoe show was unintended; the designer intended to make his product seem more desired.
When a warehouse is robbed and the security guard murdered, it turns out that the stolen container belongs to Lucifer. He and Chloe then work to find the culprit, which Lucifer sees as protecting his reputation in the city; he vaguely also tells her that a gift from his father is inside, making it extremely valuable.
Lucifer continues the search for his wings and turns to Amenadiel for help. Amenadiel rejects his entreaty at first, so Lucifer enlists Chloe to assist him. Meanwhile, Chloe asks Dan for help in investigating the Palmetto case in the hopes that she can find something to confirm her suspicions against Malcolm, the cop who is in coma.
Feeling reborn, Lucifer celebrates his "re-birthday" at the Lux. Malcolm, who also wakes up from his coma, also celebrates his coming back. Chloe and Lucifer investigate the murder of a controversial therapist who advocates adultery as a means of saving relationships.
Lucifer is surprised when he is asked for a favor by a priest named Frank Lawrence; however, he turns him away. Then they meet again when Chloe pulls Lucifer into a murder case involving Arietta, a youth counselor whom Frank said was trying to get Frank's foster son Connor involved with drug trafficking.
Chloe and Lucifer investigate the poisoning death of Javier Aries, the chef/owner of an upscale Mexican restaurant whom Lucifer admires. Suspicion falls on Javier's son Junior, a recovering drug addict
fter refusing to sleep with a drunk Chloe, much to both their surprise, Lucifer experiences a strange "high". Believing benevolence and charity can give highs equal to drugs, Lucifer uses their current case in investigating the death of Tim Dunlear
When a member of a satanic church is killed, Lucifer is greatly disturbed that anyone would kill in his name. When it turns out that Malcolm is the one killing those people to honor him, Lucifer threatens torment but then he is interrupted by Amenadiel
Amenadiel saves Lucifer from being arrested by Chloe and they go to Amenadiel's office to talk. Dr. Martin shows up and advises the brothers. They go looking for Malcolm while Maze helps Chloe hunt for Lucifer.
As Lucifer helps Chloe with a murder case involving a stand-in for a popular teen show actress, he becomes convinced that his mother's soul is occupying the body of the murderer to torment him.
Lucifer's mother is shown awakening in her new body in pain, finding a screwdriver lodged in her neck. She explains her story to Lucifer and they return to the hotel room that she last remembers being in, finding two murdered bodies.
Chloe and Dan bring Lucifer in on a case involving a serial killer, whose methods of torturing victims bother Lucifer because he sees it as someone usurping his role.
Chloe, Dan, and Lucifer investigate a young woman's dead body found discarded in the woods. The woman has a triangle-shaped stamp on her wrist which becomes a key clue when they find another female victim with the same stamp.
Chloe's car accident is revealed to have been caused by Uriel, Lucifer's and Amenadiel's brother who has the special ability to foresee patterns. Chloe is not badly hurt and she goes right back to work, starting the case of murdered action star Wesley Cabot.
At a zombie-themed wedding, shots from an unseen source wound the groom and kill the bride. Chloe and Dan investigate and Lucifer later arrives hung over, still shaken from exterminating Uriel.
Chloe gets a case that hits close to home, when she learns the man convicted of killing Officer John Decker, her father, is being released from prison under supervision to attend his granddaughter's Christening.
Chloe, Dan, and Lucifer take on the case of a female stabbing victim, who is revealed to have been a member of a yoga group that borders on a cult. Lucifer also asks Ella for help in his own case: finding out who stole Azrael's dagger from Uriel's grave.
Chloe, Dan, and Lucifer tackle the murder of a wealthy real estate mogul who owned the entire block that includes Lux.
Charlotte's attempt to kill Chloe is stopped by Amenadiel, who convinces her that eliminating Chloe would only cause Lucifer to be relentless in finding her killer.
When the only apparent connection between two murder victims is the fact that they'd once shared Lucifer's bed, Chloe interviews all of his lovers (male and female) from the past two months to try and find the culprit.
Lucifer is a bit confused when Chloe acts more carefree and relaxed in his presence, exchanging barbs with him.
Lucifer and Chloe desperately search for an antidote to save her, learning that the Professor sourced the ingredients for his poisons from an amateur artist.
Lucifer returns to Los Angeles after two weeks and introduces his wife Candy to Chloe and Dan. Chloe becomes upset, both with Lucifer's cavalier attitude and his decision to marry.
Lucifer retrieves Azrael's blade, which turns out to be the Flaming Sword that once guarded Eden and can cut through the Gates of Heaven, allowing Charlotte to return home
Lucifer and Chloe investigate the murder of an orderly at a mental institution. The suspect is a patient calling himself "God Johnson" who proves to be immune to Lucifer's powers and knows to call him Samael.
Lucifer, Amenadiel, and Charlotte cut a deal with a smuggler for the last piece of the Blade. However, the smuggler is robbed and murdered before he can turn over the piece.
Linda attempts to conceal Charlotte's wound but Lucifer recognizes that her body will soon burst. He sends Maze to find Amenadiel while he covers up Chet's murder.
Lucifer encounters a fleeing criminal and steals his clothes before getting the police to return him to Los Angeles.v
After failing to connect a recent murder to the Sinnerman, Lucifer is told by Chloe that he has to either bring her evidence that he exists or allow the case to die.
Bored with her life, Maze decides to hunt a more challenging target: a serial killer named Ben Rivers, who has evaded every attempt at capture.
When Amenadiel shares his insights with Lucifer, the latter suggests that Amenadiel needs to "walk in his shoes" in order to understand him. Marcus assigns Chloe a new case.
Simon Fisher, a chemist at a pudding company, is found dead in one of his vats and the company's owner turns out to be represented by Charlotte Richards, for whom Lucifer still has conflicting feelings.
At Chloe's birthday celebration, Lucifer receives word that Candy, his fake wife, has disappeared. Without telling Chloe, he and Ella travel to Las Vegas, where they find a woman dressed as Candy murdered in her apartment.
After waking up from a coma, Linda's estranged husband Reese Getty, an investigative reporter, discovers her affair with Lucifer. Enraged, he decides to write an exposé to ruin his reputation.
Lucifer grows concerned when Amenadiel calls him "boring" and sets out to prove him wrong. A woman named Kim Jones is murdered.
Pierce rejects Chloe's request for a personal day. Joey Pileggi, who asked Lucifer for a favor months before, winds up murdered.
The Sinnerman claims that a woman will soon be drowned in a spot only he knows. Chloe tracks a possible lead, which takes them to the woman's car and a planted bomb.
In 2011, Lucifer leaves Hell for Los Angeles. His brother Amenadiel demands that he return to Hell, but Lucifer talks him into delaying their departure.
Lucifer accuses Pierce of working for God, but he denies it. A surfer's body is found on a private beach. Chloe, furious with Lucifer for going behind her back in the previous episode, blocks him from the investigation.
Pierce loses faith in Lucifer's lack of progress. Maze theorizes that he must have an exploitable weakness.
Lucifer, realizing that he understands nothing about Cain's mark, asks Amenadiel for help, but he refuses. Ella's older brother, Jay Lopez, disappears after a man he was meeting is murdered.
Lucifer has a nightmare about Chloe dying. On his quest to help Pierce, Lucifer uses murdered author Kathleen Pike's latest work to overcome his lack of ideas.
To break Pierce's curse, Lucifer proposes resurrecting Abel from Hell. However, the plan goes awry when Abel is revived in the body of Bree Garland (Lauren Lapkus), the assistant to B movie producer Alexa Lee, whose office was recently blown up by a bomb.
Pop singer Axara's life is threatened when one of her backup dancers (wearing a mask and the same outfit as Axara) gets killed by a high-powered firework.
In 1958, Pierce, an LAPD detective, is assigned to investigate a serial murderer known as the "Broken Hearts Killer".
Maze asks Lucifer to send her back to Hell but he refuses, believing it will lead to repercussions for Chloe, and suggests that she needs to blow off some steam.
A news story surfaces of a guardian angel rescuing a victim in San Bernardino, leading Lucifer to wonder if he’s responsible.
Pierce contemplates suicide, but realizes he truly loves Chloe. Seeing a chance for a normal life where he can grow old with her and die, he tries to win her back.
Ella plans Chloe's bachelorette party. Lucifer and Dan investigate the murder of a dog trainer, with Lucifer taking the lead to "understand" Chloe better. Pierce's mark reappears,
Charlotte continues to have nightmares of Hell. Lucifer struggles to tell Chloe how he feels. Retired baseball player Forest Clay's wife is murdered.
Pierce takes control of the investigation into Charlotte's death. Dan finds Charlotte's notes on Pierce and informs Chloe and Lucifer that Pierce is the killer.
As Ella contemplates moving back to Detroit, she assists on the case of a murdered psychologist. While doing so
God narrates events in a timeline where Chloe's father, John Decker, survived the shooting that was supposed to take his life. Thus, Chloe remains an actress.
One month after Cain's death and Charlotte Richards' ascension to Heaven by Amenadiel, Lucifer has been depressed thinking how Chloe might be processing the revelation of his being the Devil himself.
During Chloe's sabbatical, she meets Father Kinley, who serves a division of the Church that knows about Lucifer. In the present, a reality show contestant, Melinda Hagey, is found dead
Kinley visits Lucifer, revealing Chloe's plans to send him back to Hell. Amenadiel proposes to Linda,
Jeweler Pablo Silva is murdered and the necklace he just made stolen; evidence leads to Bashir Al-Fassad.
Wanting closure with Chloe, who needs a vintage car to get into an exclusive automobile enthusiasts club for a case,
Eve befriends Maze, but is dismayed by Lucifer's duties with the LAPD. Linda notes Lucifer's double life will burn him out; as proof, Lucifer mixes up apology gifts to Chloe and Eve
A defeated Remiel warns Amenadiel that he will regret raising his son on Earth. Maze becomes protective of Linda.
Investigating the death of teacher Sandra Baez, Chloe tells Lucifer about the prophecy; he concludes breaking up with Eve will stop it, but can't get rid of her. Ella and Dan decide to end their affair.
Realtor Beth Murphy finds her sister Megan murdered and Megan's twin Moira standing over the body.
Father Kinley is possessed by the demon Dromos, who kills another human to summon his brother Squee.
Two months after Lucifer returned to Hell, Chloe and Maze are now partnering to solve a murder and also spend time together to fill the void from the departures of Lucifer and Eve.
Lucifer returns to assist Chloe in the investigation of a murder at an isolation experiment for a future mission to Mars at a company that is run by Anders Brody.
The real Lucifer returns from Hell and confirms to Chloe how she's a gift, upsetting her. They investigate the murder of a showrunner who created a show based on them.
Trixie visits Lucifer at his penthouse and has him tell her a story about his ring, presented in a black-and-white noir style.
Lucifer brings Chloe to the site where he cut off his wings but Chloe still needs time to process being a gift
Lucifer and Chloe investigate the murder of a DJ, interrupting their night together. The headliner, and real target of the murder,
The morning after they have sex, Chloe appears to have taken Lucifer's power of desire exhibition (mojo), but it ends up only working on him.
Lucifer is unharmed from Dan's gunshot, now invulnerable around Chloe. While Lucifer plots for the perfect revenge against Dan, Chloe keeps investigating the Whisper Killer.
God arrives just in time to stop the fighting, telling Lucifer, Amenadiel & Michael to reconcile, inviting all of them to a 'family dinner', which enrages Lucifer and shocks everyone.
God decides to stay on Earth to further understand Lucifer and his life, but his presence causes people to burst into song and dance without warning; no one is aware of this beyond Angels.
God back-pedals from his statement, claiming that his powers are just on the fritz from arriving on Earth, but Lucifer refuses to believe him after God accidentally blows up Daniel before putting him back together.
Dan is given a case by Lucifer for a prisoner transfer. The next day, he wakes up with a dead body beside him.
Dr. Linda follows a car driven by Adriana, her daughter given up for adoption. Lucifer has a talk with Amenadiel about him becoming the new God, and by the end of the talking decides to follow his gut feelings and not to overthink things,
With God announcing his retirement, Lucifer decides to become the new God, while Michael begins building support in Heaven for his own attempt at taking over; Remiel visits Lucifer and offers to spy for him,
Lucifer unsuccessfully tries to convince his siblings to support him for the God job. Chloe, unaware, resigns from the LAPD to be his "consultant." Her last case involves the killing of an evidence tech who stole murder victims' possessions.
With Michael on the verge of becoming the new God, he offers Lucifer the chance to become king of Hell once again with Chloe as his bride, having orchestrated Dan's murder for Chloe's guilt to condemn her to Hell.
Lucifer and Chloe become murder witnesses of Jared Holbrook who was mysteriously murdered during the last performance of Magnar the Magician, Jared’s mentor who was going to pass on his mantle
While investigating the murder of Fiona Fierce, Ella and Carol develop an attraction for each other, but after her experience with Pete, Ella has trust issues.
Lucifer decides to help people he hates in order to become God. He then chooses Jimmy Barnes, the murderer from the pilot, to help first. Lucifer finds out that Jimmy died a year previously at a mental asylum after seeing Lucifer's devil face.
Refusing to accept that the angel is his daughter, Lucifer dismisses her and she leaves in anger. He then goes on a mission to find all the women from his past he had sex with that could be her mother,
The angel reveals her name as Rory, short for Aurora. Rory reveals that she is Lucifer and Chloe's daughter from the future. Rory tells Lucifer that he disappears in the future on August 4 at 10th and Swanson in Van Nuys.
Amenadiel and Officer Harris investigate the murder of a Black man named Kevin. Much to his anger, Amenadiel finds out the detective on this case is Reiben, the officer who assaulted Caleb previously.
Maze and Eve start preparing for their wedding, when Adam arrives and meets Maze and Eve at Lux. Adam tells Eve that he wants to reconcile with her, but Eve tells Adam that she has already moved on.
Ella reveals a series of events that she has recorded that causes her to believe that the Apocalypse is coming. As a result, Lucifer attempts to return to Heaven to assume his role as God finally, but he is unable to summon his wings.
Amenadiel tells Lucifer that their siblings are messing with prayers and that is why that the world is ending. Lucifer tells Amenadiel that he isn’t going to be God anymore, which surprises Amenadiel. Vincent Le Mec, Dan's murderer, escapes from prison.
After finding out that Le Mec has kidnapped Rory, Lucifer decides to go and save her, with Chloe tagging along with him.