A young thief, played by Ed Westwick cases an architectural dream house in Malibu, not realizing it is the home of an eccentric female serial killer, played by Louise Linton. Catherine Black runs a successful hedge fund in Los Angeles. She is also a fashion-obsessed serial killer with a penchant for champagne, cocaine, excessive exercise, sex, expensive shoes, and indescribable violence. On the weekends she retreats from her penthouse office in a skyscraper downtown to her glass and steel architectural dream house in Malibu. On this particular weekend, she lures a young thief (Ed Westwick) to her home. After falling passionately in love with her, he discovers her true nature.