Beach Girls & the Monster (1965)
Director: Jon Hall
Actors: John Hall, Sue Casey, Walker Edmiston, Elaine du Pont, Arnold Lessing
Runtime: 66 min.
When a monster begins to slay beachgoers, oceanographer Dr. Otto Lindsay (John Hall) is convinced that the monster is a mutated fish.
Trivia: Frank Sinatra Jr. co-wrote the theme song. The book Pop Surf Culture says the movie's surf music soundtrack 'has got to rank up there among the best'.