A mysterious “wrong number” leads Margaret, newly divorced, on an erotic journey that takes her to the edge of sexual desire and obsession. She begins an affair with Blaze, the seductive stranger who draws her in with a mistaken phone call and fills her night with passion. At first, Margaret is drawn to Blaze’s game; participating in a midnight assignment with a strange man while Blaze looks on, silently watching Blaze make love with another woman. When she tires of the game and decides to leave she makes a horrible discovery-Blaze has locked her into his apartment, intent on keeping her forever. Until she draws on the courage to escape and exact revenge.