在暗潮涌动的深海，狂鲨肆意追逐，令人胆寒的恐惧悄然降临。欲求不満な人妻は毎晩隣人に

　　After her sister's murder, Nic, her younger sister and two friends seek solace through a Pacific island kayaking adventure. Hours into the trip the women are stalked by a shark and must band together, face their fears and save each other.