CHIN's

When it is discovered that the flaming sword is the only hope for the family returning home safely, the pressure is on for Lucifer to control what he has never been able to control before – his emotions – in order to ignite it. Meanwhile, Chloe wants to air some emotions of her own, but when a therapist and head of admissions at a prestigious private school turns up dead, the team must get to the bottom of it.

Lucifer returns to the city with a new bride in tow, oblivious to the distress his absence has caused. Determined to restore his working relationship with Chloe, he inserts himself into the investigation of the murder of an up-and-coming band's lead singer.

Lucifer must find the antidote to the Professor's poison before it kills Chloe. He travels to hell to find the Professor's soul and get him to turn over the antidote. While he's there, he is forced to confront his guilt about Uriel's death. Mom heads to hell to get Lucifer back, but Lucifer still feels betrayed by his parents because of something he discovers.

Lucifer and Chloe investigate a mysterious masked killer who is poisoning college students.

Lucifer and Chloe investigate the murder of two victims, who happen to be Lucifer’s ex-flames.

Charlotte is determined to get Lucifer to leave Earth by turning Chloe against him. Meanwhile, Amenadiel has begun working as Charlotte's soldier, which makes Maze question his loyalty.

Following the murder of the owner of the building in which Lux is located, Lucifer and Chloe search for the killer, while Lucifer also deals with the fact that the new owner wants to evict him and demolish the place. Lucifer goes to great lengths to protect his home, and is entirely shocked when Chloe is supportive of him. Meanwhile, Maze and Amenadiel follow Charlotte around, as she comes up with a plan to upset Lucifer enough to want to leave earth and go back to Heaven.

Lucifer links Azrael's stolen blade to a string of violent stabbings and enlists Ella's help in locating the sword.

When the prisoner convicted of killing Chloe's father is murdered, new evidence suggests he was actually framed. Meanwhile, Maze tries to find a job and Lucifer shadows Dan in order to learn how to be "normal".

Guilty and self-destructive, Lucifer clashes with Chloe during an investigation, leading her to team up with Dan instead. Meanwhile, Amenadiel bonds with Charlotte, and Maze takes Trixie trick-or-treating.