The Savage Island

After ignoring the ominous signs, a group of tourists sails to a virgin, sparsely inhabited island with beautiful sandy beaches. However, the secluded, seemingly abandoned islet soon becomes a death trap when someone cuts their yacht adrift, and an innocent ends up dead in broad daylight. As the doomed visitors seek shelter in a decrepit old mansion, shocking clues about the identity of their insane stalker come to light, and more people suffer. But what horrors lie hidden within the thick stone walls of the dark tower? Who, or better yet, what is after them?