A child’s smile can hide the darkest secrets. When Morgan agrees to watch her best friend’s nephew, she expects a quiet week of cartoons and playtime—not a series of chilling requests and a set of child-sized dentures hidden in her guest room. As her neighbor is murdered and the clues point to someone—or something—small and innocent, Morgan’s reality unravels. Who is the boy in her care, and what happened to the real Tyler? When the lights go out and escape seems impossible, Morgan must confront the terrifying truth: the greatest threat may be the child she let in. Will she survive the night—or is she already too late to lock the monster out?
When his gentle wife suddenly turns violent, he thinks it's just a rough patch—until a mysterious stranger warns him that the red line on her neck means death is coming for him. Trapped in his own home, stalked by his wife's inhuman habits and a growing horror in the dark, he realizes he's not just fighting for his marriage—he's fighting to survive the night. But the real nightmare? His wife's deadly secret is only the beginning.