One road leads to ultimate happiness the other to total sorrow. The man knocks on the door. One of the twins answers. He only asks one question and then picks the path to ultimate happiness. There is a primitive village that has this odd custom, that when a woman cheats on her husband, she tells every man in the village about it, except for her husband.
Men never talk about cheats they are aware of with each other.
The custom also says that when a man realizes he's been cheated, he hangs his wife at the same night. There comes a time in the village when the priest has to leave and he announces that there have been cheats in the village. The morning after everybody can see that no woman was hung. The same goes also for the next morning. But on the third morning there were women hung.