Kagamine Rin's Dance Moves

Rivers of Death (also known as River Dolphins of Death) is a 1974 American disaster horror film written and directed by Wes Craven and produced by Peter Benchley, starring Laurence Olivier, Linda Blair, and Richard Harris. The film is based on the 1964 novel with the same name by Ted Moore. The film follows a group of carnivorous botos on the killing spree and hunting for human flesh.