When Emily rushes to the hospital after her friend’s sudden collapse, she never expects to walk into a nightmare.Room 9 was supposed to be empty. But someone — or something — was inside. The lights flickered, blood trailed across the floor, and the door locked behind her.Now, with no way out and bodies beginning to disappear one by one, Emily realizes the killer is still among them.Everyone in this hospital has a secret.And in Room 9… no one is left alive.