A year ago, former NYPD detective Shana barely survived being abducted by a serial killer. Hoping to leave grisly murder cases behind, she's taken a job in a sleepy town. But as a storm bears down on her new territory, Shana and fellow investigator Tim receive a call about a missing man and travel to an isolated island owned by a rich family to investigate. Trapped on the island by the raging storm and surrounded by dark secrets, Shana has a theory. If she's right, a killer is in their midst and as the pressure mounts, so do the odds that they'll strike again.