Four months ago, Jessie was a corporate lawyer with a glamorous Manhattan life. Today, she is in dirty yoga pants, covered in breast milk, trying to comfort a screaming newborn. Isolated in a sleepy Long Island suburb while her commuter husband works long hours, Jessie is desperate to talk to anyone besides Food Network. So when she spies a fellow new mom and neighbor, Lina, at the local Stop & Shop, she vaults over the cantaloupe to introduce herself. Happy to have found each other, the two moms agree to meet for coffee during naptime in the sweet spot behind their adjoining yards where both their baby monitors get reception, and a fast friendship is born. Jessie and Lina may be from vastly different financial backgrounds—Jessie is Ivy-educated and of the manor born; Lina has a night-school nursing degree and terrible credit—but they have one huge thing in common: they’ve been cracked open by the love they feel for their newborns. One coffee quickly becomes a daily coffee, as Jessie and Lina laugh through the highs and lows of motherhood. But their intimacy is punctured when a stranger who lives in the mansion up on the cliff appears in the yard, asking if they would include his wife, a new mom who is having “a hard time,” in their coffee klatch. Reluctantly, the duo tries to become a trio, but with very mixed—and surprising—results.