In a small English village, an abandoned black post box stands testament to the failing Royal Mail service where post box collections have ceased and letters must be delivered to the post office in the local shop.

However, the residents of this village continue to drop irregular letters into the black box. Messages to dead relatives are not only delivered, but often requests for supernatural intervention are acted upon in the world of the living where the dead and damned can only enter by special invitation.

When a visitor learns of the black post box, he dismisses it as local superstition and chides the villagers for their simple beliefs, until he accepts the challenge to test the box for himself. What would you ask for, if you could send a message to the damned?