Molly is flying home for her mom's wedding and tells her family she is bringing a "Mystery Man." But her Mystery Man has a Mystery Wife, she dumps him curbside. She runs into childhood friend Josh who is flying to the same event. Josh gets a call from his parents and finds out his father, is dying and his only regret is he will never meet the woman his son will marry, Josh says he has met that woman, close family friend Molly. So Josh convinces a reluctant Molly to play fiancě for a few days.