In England, this film is known as The School that Ate My Brain. It takes place in a boarding school where the students are given a sort of lobotomy to turn the students into zombies. The professors, who are behind the operations, are taking tissue from the students' brains and replacing them with quartz crystals. With the tissue that is taken from the brain, the professors make a serum that will give them everlasting life, while the students remain zombies in a cheesy B rated flick. Zombie Island Massacre - 1984.
Corpses come alive on a Caribbean island.
Strait to video. Never in theaters. In this movie you do not even see the zombies, they do all the killing behind the scenes. The plot is a group of tourists who go to the islands and watch a Voodoo service. During the service a lamb is sacrificed and the tourists are disgusted.