In Lucifer Season 3, the fallen angel Lucifer Morningstar continues his life in Los Angeles, working as a consultant for the LAPD alongside Detective Chloe Decker. Their partnership deepens as they solve crimes together, but their personal relationship becomes complicated when Lucifer struggles with his growing feelings for her. Meanwhile, Chloe grapples with the shocking revelation that Lucifer is truly the Devil, though she tries to rationalize it as part of his eccentric personality.
A major arc of the season involves the arrival of Cain, the world’s first murderer, who now goes by Marcus Pierce. He becomes the new lieutenant at the precinct and develops a romantic connection with Chloe, much to Lucifer’s frustration. Pierce’s mysterious past and hidden agenda create tension, especially as Lucifer suspects something sinister about him. The dynamic between the three becomes increasingly volatile as secrets unravel.
The season also explores the celestial consequences of Lucifer’s absence from Hell, as demons begin causing chaos on Earth. His angelic brother Amenadiel faces his own crisis of faith, losing his powers and struggling with his purpose. Meanwhile, Maze, Lucifer’s loyal demon ally, feels neglected and betrayed, leading her to act out and seek new alliances. Her emotional journey adds another layer of conflict to the story.
A key subplot involves the introduction of a mysterious Sinnerman, a criminal mastermind who seems to know Lucifer’s secrets and taunts him throughout the season. As Lucifer and Chloe investigate, they uncover shocking twists, including the true identity of the Sinnerman and his connection to Pierce. The season builds toward a dramatic confrontation that forces Lucifer to confront his vulnerabilities and make difficult choices.
The finale delivers major revelations, including Chloe finally witnessing Lucifer’s true face, confirming his supernatural nature. Pierce’s ultimate plan comes to light, leading to a climactic battle that changes the course of several characters’ lives. The season ends with emotional farewells, unexpected betrayals, and a cliffhanger that sets the stage for the next chapter in Lucifer’s journey.