Mrs. Smith doubted Mr. Smith badly, and she paid for a tall spy to watch him all day long, and the spy found out about Mr. Smith and his jacky mistress. They were very happy together, and since the spy pitied Mr. Smith, he told them in a restaurant which served dim sums.
Mr. Smith laughed at the spy, and said that he already knew about it, and that he needn't worry. The spy stared at them, and left the restaurant.
The villagers of the village they lived in didn't know about this, so Mr. Smith planned the murder without much difficulties. All he had to do was stack a pile of Mrs. Smith's favorite books on the roof of their building, and when she came, he would scare her, and then she'll jump off.
He finally beat her!
He didn't even cry.
He just said goodbye.