Rose is a woman descending into an emotional tailspin after her husband admits to an affair. Hell-bent on revenge, she drives to a boarded-up Delaware beach town to hunt down the other woman. Instead, she discovers a stranded British teenage boy marooned on the beach. This lost boy becomes her constant companion and caretaker. The mismatched pair stumbles through a series of small adventures that build towards an unconventional romance in this funny and affecting film.