Obsessed with sex and death, a man is haunted by visions of beautiful women and brutal violence. He begins an odyssey into a world which, in his mind, transforms into an array of sexual fantasies and images of horrible accidents, suicide and murder. Like a bird of prey, he seeks out fatal automobile crashes and an assortment of other tragedies, which he records on film with a movie camera to view repeatedly, over and over. His dreams are a twisted amalgam of violent images juxtaposed with the tenderness of lovemaking. Overwhelmed by such fantasies, he soon becomes unable to distinguish reality from fantasy. He seeks to rid himself of these disturbing thoughts through love and by understanding the true nature of man. Instead, his emotional state falters, becoming more attuned with the notion of self-destruction. Morality becomes only a literary flourish, and dreams, now prophetic nightmares, the harbingers of complete and utter annihilation.

Returning from the planet Venus, an errant NASA spacecraft crashes into the ocean, spilling its radioactive cargo. Enveloped by a radioactive mass, a rabid weasel is transformed into a gigantic killer mutant. Prowling the countryside, the huge weasel kills and devours victims. The creature is captured by a disturbed scientist who plans to use its regenerative blood to amass an army of similar monsters, enabling him to conquer the Earth.

A series of horrible murders prompts a massive police investigation. Inspector James Cameron, a two-fisted roughneck with his own philosophy on handling crime, heads the investigation. A group of lepers living in the Long Island wastelands have created a terror network, killing and feeding off the flesh of innocent victims. Their leader has mutated into an invulnerable monster; he intends to propagate and strengthen his stronghold. Aided by his son Jack and a couple of motorcycle freaks, food is supplied to the clan via murder. As the authorities close in on the cannibal killers, an all-out bloodbath ensues.

Two Texas gardeners, who object to Northern attitudes and lifestyles, venture northward to cut lawns, trim hedges, and murder and mutilate Northern Yuppies.

A lesbian stripper lives with her lover, a novelist with writer's block who cheats on her with another woman.