Riley's life is pretty ordinary - school, no friends, and a whole lot of routine. But when her curiosity about baby diapers leads her to the supermarket aisle, things get unexpectedly complicated. With a mysterious stranger offering kindness and understanding, Riley starts to explore a secret part of herself she never dared to admit. Being eleven is confusing enough... but navigating it with diapers? That's a whole new adventure.

When Grace returns home from college, it doesn't go like she thought it would. With her past still haunting her everyday choices, she discovers a side of herself kept hidden from everyone but her mother. Forced to experience that side more fully now, Grace is unsure if she likes being the youngest anymore... or as they like to say, the family's baby.