On a small island off the California coast it's the Fourth of July and tourists are washing up dead in Babylon Bay, once again! In 1987, rumor has it that mysterious sea creatures called Aquanoids were responsible for 17 vicious deaths. The Mayor dispelled the sightings as urban legend to protect the local tourist trade. Join environmental activist Vanessa DuMont as her fight to save the endangered abalone on Santa Clara Island turns into a fight of her life.

A naïve young girl desperate to fit in with her new boyfriend's tightly knit crew learns that membership may be deadly. Upon arriving at a party with her new boyfriend, Shawn, desperate-to-fit-in newcomer Debbie learns that the friends have formed a mysterious brotherhood nicknamed "The Murder Club." As Debbie accepts her invitation to join the mysterious club, a murderer who seems to take the group's name to heart begins killing off members one by one.