While trying to make his sister's wedding day go smoothly, Jack finds himself juggling an angry ex-girlfriend, an uninvited guest with a secret, a misplaced sleep sedative, and the girl who got away in alternate versions of the same day.

In this innovative romantic comedy about the power of chance, alternate versions of the same wedding unfold as Jack (Sam Claflin) tries to make sure his little sister has the perfect wedding day. But he'll need to juggle an angry ex-girlfriend, an uninvited guest with a secret, a misplaced sleep sedative, and an unexpectedly reunion with the girl of his dreams who got away, Dina (Olivia Munn). If he succeeds, Jack might find his own happy ending.—Netflix