In this psychological thriller from Academy Award Nominated director Atom Egoyan, Matthew (Ryan Reynolds) steps briefly into a diner and comes out to find that his young daughter Cassandra has vanished without a trace from the back of his truck. Her unsolved abduction destroys Matthew's once-happy relationship with his wife, Tina (Mireille Enos), who, haunted by mementos of Cassandra that appear mysteriously at her work, suspects her husband of foul play. Years later, when detectives Nicole (Rosario Dawson) and Jeffrey (Scott Speedman) discover recent images of Cassandra online, Matthew risks everything to ensure his daughter's safe return-and to save himself and Tina from the limbo of unrelenting despair.