A librarian suffers from a strange condition that causes him to involuntarily move backwards and forwards in time. He marries a woman who was already in love with him after an encounter in his future and her past, but his journeys through history put a strain on their relationship, especially as he learns more about events that have yet to happen. Romantic sci-fi drama based on Audrey Niffenegger's novel, starring Rachel McAdams and Eric Bana