In a comfortable Brooklyn neighborhood, Alice Halpern waits for her best friend, Lauren, at the local playground. But when Lauren doesn't show up, and then fails to pick her son up from school, Alice watches her own life turn into a nightmare. As the police desperately search for Lauren, who is nearly nine months pregnant, Alice, herself pregnant with twins, realizes she's being followed and has the creeping fear that she'll be next. As the investigation intensifies, Alice is shocked to see her familiar world turned upside down by the list of suspects. And as two new lives grow within her, she must fight to save them, her family-and herself.