In a house in the English countryside, a man has just turned up dead, surrounded by a crime scene that seems, at first glance, to be fairly straightforward. He's found with a bullet through the head in an unlocked room, and all signs point to a recent strange visitor as the perpetrator. The body is even accompanied by an ostentatious clue, presumably left by the killer: The tarot card of The Eight of Swords, an allusion, perhaps, to justice.