A night out. A few hours of fun. That's all it was meant to be ...

They call themselves the May Mothers?a group of new moms whose babies were born in the same month. Twice a week, they get together in Brooklyn's Prospect Park for some much-needed adult time.

When the women go out for drinks at the hip neighborhood bar, they are looking for a fun break from their daily routine. But on this hot Fourth of July night, something goes terrifyingly wrong: one of the babies is taken from his crib. Winnie, a single mom, was reluctant to leave six-week-old Midas with a babysitter, but her fellow May Mothers insisted everything would be fine. Now he is missing. What follows is a heart-pounding race to find Midas, during which secrets are exposed, marriages are tested, and friendships are destroyed.

Aimee Molloy's debut novel, The Perfect Mother, was a New York Times bestseller, and has been translated into more than twenty languages. She lives in Western Massachusetts with her family.