Lucifer has left hell to take up a life on Earth. When a friend of his is murdered, Lucifer joins forces with the good side of the law to discover who the perpetrators are and to give them what they rightfully deserve.

Upon leaving hell, Lucifer Morningstar retreats to Los Angeles for a more exciting life. When the murder of a friend connects him with LAPD detective Chloe Decker, Lucifer becomes intrigued with the idea of punishing criminals, sending the devil himself into a struggle between good and evil.

When a movie star's son is killed after being chased by the paparazzi, Chloe takes a deep look into the case with a little help from Lucifer. Meanwhile, Maze and Amenadiel continue to encourage Lucifer to go back to hell.

Loony Lucifer and cartoon Chloe find themselves trapped in an animated loop. Amenadiel prepares for his new job. Dan returns to the city of angels.