Ed Janis

A mentally and physically scarred monster rampages through the old west, killing and raping as he seeks to meet up with his cohorts in a bank robbery. He is pursued by a vengeful posse who have no thoughts of bringing him back for justice.

A young girl is killed at the beach in Malibu. Professor Otto Lindsay suspects that it is some form of mutated fish. However, his son Richard, who was a good friend of the girl, thinks that it is a madman who has a grudge against Richard and his friends. Soon the list of victims grows.