The Beach Girls and the Monster 1965

Synopsis:

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.

Directed by: Jon Hall
Written by: Joan Gardner
Runtime: 70 minutes
Tagline: Go! Go! Go! The Coolest Monster Shindig of Chicks and Chills!
Cast:
Jon Hall
Jon Hall
Dr. Otto Lindsay 
Sue Casey
Sue Casey
Vicky Lindsay 
Elaine DuPont
Elaine DuPont
Jane 
Arnold Lessing
Arnold Lessing
Richard Lindsay 
Read Morgan
Read Morgan
Sheriff Michaels