Night Tide (1961)

On leave in a shore side town, Johnny becomes interested in a young dark haired woman. They meet and he learns that she plays a mermaid in the local carnival. After strange occurrences, Johnny begins to believe that she may actually be a real mermaid that habitually kills during the cycle of the full moon.

Dennis Hopper, Linda Lawson, Gavin Muir

1961, B&W, 84 minutes, cult