Dominic Deville stalks young victims for a week, sending chilling texts, making prank phone calls and setting traps in letterboxes.
He posts notes warning children they are being watched, telling them they will be attacked.
But Deville is not an escaped lunatic or some demonic monster.
He is a birthday treat, hired by mum and dad, and the ‘attack’ involves being splatted in the face with a cake.
What could possibly go wrong?