Reeling from a broken heart and career meltdown, a singer takes a gig at a swanky island resort — where her ex-fiancé happens to be getting married.

Six strangers use their wits to survive a series of deadly mystery rooms that cater to their worst fears -- or die trying.

When shark conservationist Dr. Misty Calhoun is invited to consult on a top-secret project run by pharmaceutical billionaire Carl Durant, she is shocked to learn that the company is using unpredictable and highly aggressive bull sharks as its test subjects, which soon break loose and cause havoc.