A schoolboy is bullied by a classmate to follow a beautiful young woman when she gets off a bus after work. He follows her, and becomes intrigued by her private life.
Years later, he meets her in a professional setting and learns intimate details of her life.
His fantasies become an obsession, he begins stalking her, watching her with lovers, imaging what it would be like if he could become one. She invites him to her home for a business meeting not knowing how this feeds his fantasies.
One weekend, when he knows she is away with a boyfriend, he crosses over the line . . .