In Rivendale, Connecticut, every night brings the same dream: an endless corridor of doors hiding humanity’s darkest fears. When people stop waking, their bodies turn to grotesque statues of flesh and bone, the world teeters on collapse. Nathan Vale, a writer cursed with sleeplessness, is the only one who can enter this collective nightmare to save the trapped, including his lost sister and friend. But the Keeper at the corridor’s end—a monstrous weave of human guilt and pain—demands a price Nathan may not survive.