From New York Times bestselling author Domenica Ruta comes a heartfelt, hilarious novel about a single mom reimagining what the perfect family looks like—welcome to “the mommune.”

While her whole life crumbles around her, Sandy is stalking her ex's Instagram. Specifically, she is scrolling through his follower list, desperately trying to find the other woman she suspects he has a child with.

After a series of disastrous romantic choices, Sandy makes her greatest mistake yet when she gets unexpectedly pregnant in her mid-30s by a dating-app flop. Sandy tries to maintain something like a normal life with her daughter’s dad, a wannabe rock star, and his icy, codependent mother. But finding out that her baby has a half-sibling she doesn’t know anything about is a bridge too far. Sandy has to talk to this woman.

Enter Stephanie, the other mother. Sandy is prepared to hate her but when the two women meet, they are shocked to learn how much they have in common beyond the deadbeat father their children share. Now Sandy needs to figure out what her and Rosie’s family looks like with all these new additions. Could life in a mommune be the answer to her prayers, or just a new brand of chaos? In this winning story of family both chosen and created, Sandy is about to discover that when nothing goes as planned, the best things become possible.