Barbara Trentham

In a corporate controlled future, an ultra-violent sport known as Rollerball represents the world, and one of it's powerful athletes is out to defy those who want him out of the game. (imdb)

A manager is sent to vacation by his doctor due to symptoms of stress. He chooses Hawaii, because that's where his grandfather worked as a missionary. He doesn't know that his grandpa and all male successors are cursed by the Voodoo clan. Every night he transforms into a werewolf and horribly slays young women. (imdb)

A woman begins to suspect that her brother is possessed by a voodoo spirit.