Sun, surf and one psycho babe.

It's 1962 and Florence Forest is sweet sixteen and never been kissed. She lives with her mother, Mrs. Forest and a Swedish exchange student named Lars. At the local drive-in, Florence and her friend actually watch the film, while Starcat, heartthrob of the surfer set, flirts with perky babe Marvel Ann. When Florence visits the concession stand wheelchair-bound meanie Rhonda torments her until screams interrupt their nasty exchange. Someone at the drive-in has had her throat slashed! Captain Monica Stark has a number of suspects, including Florence and Mrs. Forest. But the grisly event does not keep the gang from the beach!