When her ex comes to town, Cassie Jones has her world turned upside down. Thanks to her own lies, he expects her to be not only in love with the man of her dreams, but engaged. Cassie has no time to formulate a revised plan of her own so she enlists the help of co-worker and friend, Julia. Julia's "help" comes in the form of a man who's completely wrong for Cassie in every conceivable way. With no time to spare, Cassie plunges headfirst into her fake relationship, despite her hesitation. She's about to discover that one week can change everything.