Clarkson stars as Helen, a doctor who is mourning the recent sudden passing of her beloved husband. She’s retreated to the beautiful and remote island cabin home that they loved, to put his things in order. A series of unexpected events – damage to her boat, and a sudden storm that knocks out power - leaves Helen suddenly completely cut off from civilization. Then, a small boat washes up on her shore carrying William (Speedman) – unconscious and bleeding from a gunshot wound. Helen pulls him in and saves him, but now finds herself stranded alone with this unknown and potentially dangerous stranger.