About the title
Greg invites his friend Jess, a young single mother, to spend a day on a yacht with his friends. A sudden violent storm capsizes the boat, and the survivors are forced to wait for help, clinging to the yacht's overturned hull. Rescue arrives in the form of a huge ocean liner. The ship turns out to be empty, its clocks stopped. But it soon becomes clear that the young people aren't alone on this enormous vessel - someone is relentlessly watching them.