David Burroughs was once a devoted father to his three-year-old son Matthew, living a dream life just a short drive away from the working-class suburb where he and his wife, Cheryl, first fell in love --- until one fateful night when David woke suddenly to discover Matthew had been murdered. Half a decade later, David has been wrongly accused and convicted of the murder, left to serve out his time in a maximum-security prison. Then Cheryl’s younger sister, Rachel, makes a surprise appearance during visiting hours bearing a strange photograph. It’s a vacation shot of a bustling amusement park a friend shared with her, and in the background is a boy bearing an eerie resemblance to David’s son. Even though it can’t be, David just knows: Matthew is still alive.