Every family has its fault lines, and when Maggie gets a call from the ER in Maryland where her older sister lives, the cracks start to appear. Ginny, her sugar-loving and diabetic older sister with intellectual disabilities, has overdosed on strawberry Jell-O.

Maggie knows Ginny really can't live on her own, so she brings her sister and her occasionally vicious dog to live near her in upstate New York. Their other sister, Betsy, is against the idea but as a professional surfer, she is conveniently thousands of miles away.

Thus, Maggie's life as a caretaker begins. It will take all of her dark humor and patience, already spread thin after a separation, raising two boys, freelancing, and starting a dating life, to deal with Ginny's diapers, sugar addiction, porn habit, and refusal to cooperate. Add two devoted but feuding immigrant aides and a soon-to-be ex-husband who just won't go away, and you've got a story that will leave you laughing through your tears as you wonder who is actually taking care of whom.