Essen's only inheritance her vanished father left her is a bizarre never-ending task. To silence the horrible rabbit squeals that emanate from behind a grim stone door at her family's house.

Once a week, she must place a cloth-wrapped talisman into its peep hole.

The door holds the strange shape of a snowman she used to love as a child, the talisman a carrot. And behind the door resides a mysterious room named the Rabbit box.