Harper's Island (2009)

A destination wedding on a remote island takes a dark turn when a close-knit group of family and friends gathers to celebrate love. Unbeknownst to them, a sinister presence lurks among the festivities, poised to strike. As the joyous occasion unfolds, hidden tensions and long-buried secrets surface, leading to deadly consequences. Each day brings new revelations and escalating fear as a mysterious killer picks off guests. What starts as a celebration quickly devolves into a chilling battle for survival, leaving everyone questioning who will make it to the end of the wedding week alive.