Lottie is thirty-three and sick of long-term boyfriends who don't want to commit to marriage. When her old boyfriend Ben calls out of the blue and reminds her of their pact to marry if they were both still single at thirty, Lottie jumps at the chance. There will be no dates and no engagement - just a quick march to the altar and a honeymoon on the Greek island where they first met. But family and friends, sure they're making a terrible mistake, are determined to intervene.