Dr. Sarah Taylor is a police psychiatrist who is currently working with an accused killer who is showing signs of having multiple personalities. Her job is to determine if he is really mentally ill, or just faking it to escape a conviction. Meanwhile, her private life is changing. While avoiding any sexual relations with her neighbor upstairs, she begins to see a mysterious Puerto Rican man whom she met in the supermarket. She is hesitant and nervous around him, but at the same time attracted to him.

Their relationship quickly escalates to a series of sexual games, but, at the same time, a number of attacks take place near her home. Someone is leaving dead flowers, dead animals, and deadly messages for her, and her first assumption is her boyfriend, Tony Ramirez. He denies everything but something just isn't right.