Lucifer Morningstar, the Devil himself, grows bored of ruling Hell and abandons his throne to live in Los Angeles. He opens a nightclub called Lux, indulging in earthly pleasures like alcohol, sex, and music. When a close friend is murdered, he becomes fascinated by human justice and teams up with LAPD detective Chloe Decker to solve the case. His charm, wit, and supernatural abilities—like drawing out people’s desires—make him an unconventional but effective partner.
Chloe, a by-the-book detective, is initially skeptical of Lucifer’s involvement but soon realizes his insights are strangely accurate. Unlike everyone else, she is immune to his powers, which intrigues him. As they work together, Lucifer begins to question his own nature, wondering if he’s truly evil or capable of change. Meanwhile, his angelic brother Amenadiel arrives to convince him to return to Hell, fearing his absence will disrupt the cosmic balance.
Lucifer’s therapy sessions with Dr. Linda Martin add depth to his character as he grapples with his identity and past. He resents his father, God, for casting him out of Heaven and struggles with feelings of abandonment. Linda helps him explore his emotions, though she doesn’t initially believe he’s the actual Devil. Their sessions reveal his vulnerability beneath the confident, hedonistic exterior, making him more relatable despite his divine origins.
The season also explores Chloe’s personal life, including her strained relationship with her ex-husband, Dan, and her young daughter, Trixie, who takes an instant liking to Lucifer. Meanwhile, Lucifer’s celestial past catches up with him when other supernatural beings, like the demon Mazikeen, his loyal ally, and Malcolm, a corrupt cop resurrected by Amenadiel, complicate his new life. These conflicts force Lucifer to confront his role in the universe and his growing attachment to humanity.
By the season’s end, Lucifer and Chloe solve the murder, but bigger mysteries unfold. Chloe is shot, and Lucifer, in a moment of desperation, reveals his true face to save her—leaving her in shock. The season closes with questions about Chloe’s origins, Lucifer’s destiny, and whether he can truly escape his divine purpose. The blend of crime procedural, supernatural drama, and dark humor sets the stage for deeper conflicts in the series.