The narrator is a man who has traveled back in time to relive his life after his wife's infidelity led him to commit suicide. In this new life, he discovers that his wife, Sun Yuan, is having an affair with his brother, Liu Kai. The narrator is torn between his desire for revenge and his love for his wife. However, after a conversation with his mother, he decides to spare their lives and instead plans to expose their infidelity on Liu Kai's wedding day.
The narrator enlists the help of a friend, Sun Ergou, to install cameras in his home and gather evidence of the affair. When the opportunity arises, Sun Ergou helps the narrator to catch Sun Yuan and Liu Kai in the act, and they are caught by the police.
The narrator plans to use the evidence to ruin Liu Kai's wedding and expose the affair to their friends and family. However, he also expresses a sense of heartbreak and longing for his wife, suggesting that his feelings for her are still complicated.
Here are the key facts extracted from the text:
1. The narrator's wife passed away, and he found out that she was having an affair with his brother.
2. The narrator had a severe depression after his wife's death and attempted to take his own life.
3. However, he got a second chance at life and decided to prevent the tragedy from happening again.
4. The narrator found out that his wife had cheated on him with his best brother, Liu Kai.
5. He became violent and wanted to harm them, but his mother's call stopped him from doing so.
6. The narrator's mother had raised him alone after his father passed away.
7. The narrator's wife, Sun Yuan, was still alive and was having an affair with Liu Kai.
8. The narrator decided to take revenge on his wife and Liu Kai by gathering evidence of their infidelity.
9. He installed cameras in his home with the help of his friend, Sun Ergou.
10. Sun Yuan and Liu Kai were caught on camera having an affair in the narrator's home.
11. The narrator sent a message to Sun Yuan, pretending to apologize and make amends.
12. Sun Yuan and Liu Kai planned to meet at the narrator's home while he was at work.
13. The narrator asked Sun Ergou to help him catch Sun Yuan and Liu Kai in the act.
14. The police were called, and Sun Ergou pretended to be concerned about a burglar in the narrator's home.
15. Sun Yuan and Liu Kai were caught by the police and Sun Ergou, and the narrator planned to expose their infidelity at Liu Kai's wedding.