Invasive Behavior

A sub-genre built on boundary violations, whether it’s masked intruders at your front door, a voyeuristic app that won’t leave you alone, or a cloaked alien hunter crashing down from the sky. From home-invasion dread (The Strangers, Wait Until Dark) to tech-watchers (Watcher, Unfriended) to extraterrestrial incursions (Predator), this tag captures any story where something unwelcome breaks in and refuses to let go.