Four best friends from boarding school decide to attend a massive blow-out High School graduation party on Block Island. After missing the last ferry they decide to hire a fishing boat to take them on what should be a simple journey.

Mark Fisher disappeared from his home in a brilliant flash of blue light almost 2 years ago. His friend Seth Hampton was the last to see him alive. Now a string of grisly, violent murders leads Seth to believe that Mark is back, a...