Toronto doctor Helen Matthews, mourning the death of her husband, retreats to the isolated island cabin where they'd spent some of their most cherished moments together. Her reverie is cut short when a mysterious man, Will, washes ashore with a bullet in his shoulder. As he recuperates, the two develop a tentative connection, though Will refuses to explain what happened. When a severe storm traps them on the island as Will's would-be killer returns, their ability to trust each other then becomes a matter of survival. This film is the story of a couple warily exploring their growing bond under extreme circumstances.