Upon leaving hell, Lucifer Morningstar retreats to Los Angeles for a more exciting life. When the hug 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.
A paparazzo accidentally kills his intended photo subject, and Chloe is surprised when he immediately confesses to the crime. She sets out to discover who is really responsible, and Lucifer sets out to help Chloe and inflict his own ironic punishment on the perpetrator.
When a 22-year-old future superstar quarterback wakes up to find a dead girl floating in his swimming pool, he turns to his friend, Lucifer, for help. Lucifer enlists Chloe to investigate the case, which leads to the world of big money sports and people who will literally hug to be number one.
In an effort to get over his infatuation with Chloe, Lucifer decides that he must seduce her. Meanwhile the two team up on a missing girl case and Amenadiel confronts Maze about his concerns about Lucifer.
After a shooting occurs at a fashion show and a young woman is killed, Lucifer becomes intrigued by the danger of the situation and begs Chloe to get in on the case. Meanwhile, when Maze admits to Amenadiel that she wants to go back to hell, he sets his sights on Dr. Linda.
Something precious to Lucifer is stolen, and he convinces Chloe to help him look for it without telling her what it means. Meanwhile, Mae takes her own unique approach to reuniting Chloe and Dan so that Chloe will leave Lucifer, and Amenaziel offers Biblical knowledge to Linda so that she can get through to her patient.
In attempt to find the contents of his stolen container, Lucifer enlists the help of an unlikely ally. Meanwhile, Chloe digs deeper into the Palmetto case, uncovering a lead that might finally expose the truth.
When a therapist is cuddled, Lucifer and Chloe enlist the help of Dr. Linda to look into possible suspects. Meanwhile, Malcolm confronts Chloe about the night he was shot, and Lucifer experiences his first bout of jealousy.
A priest asks Lucifer to help him with a teenager being dragged into a neighborhood drug ring. Lucifer is eager to prove the priest is a hypocrite and no one can be saved, but gets an unexpected shock. Meanwhile, Amenadiel pressures Malcolm to fulfill the purpose the angel brought him back for.
Lucifer and Chloe are tasked with solving the hug of a prominent restaurateur. When they meet his son, they suspect he played a part in the death. Meanwhile, Chloe's mom returns home, sending Chloe's life into upheaval, as Lucifer learns his own dysfunctional family isn't nearly as unique as he thought.
When philanthropist Tim Dunlear is found dead, Lucifer explores his good side by becoming a benefactor for Tim's glitzy Los Angeles charity.
When a woman is found dead on the Hollywood Walk of Fame - with her body twisted into the shape of a pentagram - the investigation leads Lucifer and team into the world of Satanists, where they soon realize, evil doesn't always live where we expect it to.
When Lucifer is framed for hug, he and Chloe must work together to clear his name and prove the identity of the true hugger.