As the city reels from a string of unsolved sexual assaults and murders, a neurotic voyeur named Matt Wyler prowls the streets. When he's not peeping through strippers' windows at night, he's fixated on the young and nubile Annabelle, the daughter of hisfriend and landlord, Dr. Greene. Finding himself frequently alone with Annabelle in their shared house, Wyler is an ominous presence who "accidentally" walks into her room at inopportune moments. Annabelle is kidnapped and held prisoner by the psychopathwho is the object of an all-out police dragnet, while Dr. Greene scours the woods and alleyways in a desperate attempt to rescue her. Wyler, though, seems more intent on hunting down the deranged man who snatched Annabelle, driven to violent vigilantism by his own inner demons and consuming guilt.