一位独自旅行的女子在游艇上遭遇到了三个人的袭击，她被迫进入了沉没于鲨鱼出没水域中的沉船残骸中去寻找那些人想要的东西。

Paul (Morgan) investigates his late father's increasingly disturbing past and becomes suspicious of the mysterious, melancholic, and possibly dangerous, Madelei…