While hosting a game of cards one night, Narumov tells his friends a story about his grandmother, a Countess. As a young woman, she had once incurred an enormous gambling debt, which she was able to erase by learning a secret that guaranteed that she could win by playing her cards in a certain order. One of Narumov's friends, German, has never gambled, but he is intrigued by th... (展開全部)