A snake lover sends out poisonous snakes and reptiles to kill his enemies.

The manager of a rock band fires the drunken, psycho bass player, who goes on a rape and murder spree.

A disturbed boy kills his father with his farm tractor and his arm is mangled in the process. He's taken to a mental hospital where he's outfitted with a hook to replace his lost hand and, years later, he's eventually released from the asylum. He returns home to find his mother has remarried, which sets him off on a murderous rampage.

Karen wants more action out of life and quits her job at the cannery to become a skater in the roller derby. She encounters friction from the other skaters - especially Mickey, the current number one star of the team. Karen proves herself a feisty competitor but refuses to be a team player. As she skates her way to roller stardom, she incurs the wrath of jealous team members and the owner of the team.

An alien life form, resembling glowing rocks, summons forth a huge, rolling ball of fire, whenever threatened, that incinerates people.

Oscar nominated short film from 1972