Bored and unhappy as the Lord of Hell, Lucifer Morningstar has resigned his throne and retired to the City of Angels. Lucifer is enjoying his retirement and indulging in his favorite things - wine, women, song - when a beautiful pop star is brutally murdered. For the first time in 10 billion years, he feels something awaken deep within him. Is he actually capable of feelings for a human being? The very thought disturbs him - as well as his best friend and confidante, Mazikeen. The murder attracts the attention of LAPD homicide detective Chloe Dancer. As they work together to solve the murder, Lucifer is struck by Chloe's inherent goodness.