When grieving couple Kate and John Coleman adopt a strange and sophisticated little girl named Esther from a remote orphanage in Eastern Europe, they believe they’re offering her a second chance. But as the days pass and their home is consumed by eerie paintings, ghostly whispers, and inexplicable tragedies, Kate begins to suspect that Esther isn’t a child at all—but something ancient, deranged, and deeply dangerous. Behind Esther’s porcelain smile lies a grotesque truth: she is Leena Klammer, a 33-year-old woman with a rare condition that makes her appear young—and a deadly obsession with infiltrating families that leads to madness and murder.