One day, Fred Madison, a Los Angeles saxophonist, receives a message on the intercom of his house: "Dick Laurent is dead." The next morning, his wife Renee finds a VHS tape on their porch containing a video of their house. After having sex, Fred sees Renee's face as that of a pale old man, then tells her he had a dream about someone resembling her being attacked. As the days pass, more tapes arrive, showing shots of them asleep in their bed. Fred and Renee call the police but the detectives offer no assistance. Fred and Renee attend a party being thrown by her friend Andy. The Mystery Man Fred dreamed about approaches Fred, claiming to have met him before. The man then says he is at Fred's house at that very moment and answers the house phone when Fred calls him. Fred learns from Andy that the man is a friend of Dick Laurent's. Terrified, Fred leaves the party with Renee.