"While searching for missing teenagers, novice skip tracer Maggie McKeown (Heather Menzies) and local town boozer Paul Grogan (Bradford Dillman) stumble upon a top-secret Army laboratory conducting genetic research on piranha fish for the purpose of developing biological warfare. When the deadly eating machines are accidently released from the compound, they're soon headed downstream and consuming everything, and anything, in their path. Just when you thought it was safe to go in the river...Piranha features a stellar group of talent in front of as well as behind the camera. The top-notch cast of cult stars includes Kevin McCarthy (Invasion of the Body Snatchers), Barbara Steele (Black Sunday), Belinda Balaski (The Howling), Dick Miller (A Bucket of Blood) and Paul Bartel (Death Race 2000). Piranha is director Joe Dante's second film. He would go on to direct Gremlins and Small Soldiers. Producer Jon Davison went on to produce the blockbusters RoboCop and Starship Troopers. The film also features a thrilling soundtrack by Pino Donaggio (Dressed to Kill, Carrie and Dante's The Howling)."--Container.