A group of teenagers in San Francisco discover a nest of homicidal monsters living in a tower of the Golden Gate Bridge, but when they try to tell authorities, no one believes them. Stars Clyde Hayes, Leilani Sarelle and Donna Locke.
Some of the “maniac” characters are credited as two different performers. The film production shut down for three months due to financial difficulties. When shooting resumed, many of the performers were unavailable and were recast as such.