Haunted Boat (2005)

Six teenagers board a small boat and head out for a weekend of fun and partying, oblivious to the vast sea and building swells. Suddenly, tragedy strikes, hurling the teens into blind panic. They try to head home but the engine won't start. Strange and inexplicable events follow, each increasingly more terrifying. Lost at sea with no way to communicate their plight, the teens struggle to survive an unseen enemy, only to be overcome by a pernicious evil at every turn. One by one, each must face the terror of the one thing he fears most in the world, and each must answer to a fate of his own making.