Six months before his wedding， Shawn is suddenly filled with doubt。 Maybe it was the family wedding， maybe it was his friends， maybe all it took was the beautiful girl in white。 Before he knows it， casual glances turn into something more。 His fiancé， Amy， knows things aren't right， but Shawn isn't talking， that is， until the girl in white hitches a ride。 Now the glances and 。。。