This summer growing up is optional. Leigh is almost 30 and living a seemingly perfect life in New York. But when her career and love life both come crashing down, she flees to her suburban hometown and regresses right back into teenage behavior. She moves in with her parents, hangs around with friends who never left town, and reclaims her high school job as a condo-complex lifeguard. But as Leigh enjoys shirking off adult life and responsibilities and enters into an illicit affair, she begins to affect those closest to her.