The young Samantha (Jennifer Stuckert) was for five years in jail. The charge: Murder of her family. After it has been brought to justice for a crime that they did not commit, she decides to spend the weekend with a few friends on the yacht of her late father. But when the trip on the luxury yacht abruptly mysterious incidents are piling up. Not only that the engine goes on strike or rapidly decreases the number of companions, there seems to be a creature on Board that the last remaining acts of brutal forces.