Bizarre cult film with a young Dennis Hopper. A beatnik seaside carny town is where Hopper is spending some leave time from the service. He becomes mesmerized and infatuated with a mysterious woman who is the mermaid in a sideshow. She tells tales of other undersea races. Dark, moody, avant garde atmosphere. A moody world of the sideshow and Hopper's decent into otherworldly situations. A haunting dream sequence is a shocker!