在幽暗的海底，暗礁狂鲨悄然游弋，捕猎着每一个不经意的猎物。官场欲妇春情荡漾

　　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.