Everyone says Lauren Tranter needs rest, and they're right; with newborn twins, she's never been more tired in her life. But she knows what she saw: in her hospital room, a woman tried to replace her babies with some sort of creatures. Everyone, from her doctor to her husband, thinks she's imagining things. Then the babies disappear from Lauren's side in a park, and when they're found, something is different about them. The infants look the same to everyone else, but in this modern twist on the changeling tale, Lauren senses that something is off. Determined to bring her true infant sons home, Lauren will risk making the biggest mistake of her life.