After surviving a shark attack on her 18th birthday, a woman's life takes a dark turn when she becomes the target of a deranged stalker. With her boyfriend dead and her feet bound and gagged, she must find a way to escape and outsmart her relentless pursuer.

Killer and shark-obsessive Bruce Kane is in hiding, masquerading as a shark researcher in the isolated lighthouse where high school student Courtney and her friends have decided to go swimming. After a fling, Courtney can’t shake Bruce from her life and has to take matters into her own hands when his obsession turns deadly.

On an idyllic day at the beach, Alison and her younger brother, Kevin, are saved from a vicious shark attack by the brooding and mysterious Daniel. Welcomed into their home, Alison soon discovers that her mysterious savior and protector has a dark and disturbing past.