Song Chibin discovered that his wife Sun Yuwei and his best friend Zhang Manni were both pregnant after climbing a mountain, and his wife behaved strangely. Through investigation, he learned that the two hired a male college student to accompany them when climbing the mountain. The child in the wife's belly was most likely not his. They also kept in contact with the other party and planned to misappropriate property to support his business venture. Song Chibin secretly teamed up with Zhang Manni to set up a trap to induce his wife to sign a divorce agreement and leave the house. He also instigated a male college student to have an affair with Zhang Manni, causing internal fighting among the three. In the end, Sun Yuwei and Zhang Manni had a scuffle that left one injured and the other insane, and the male college student was accidentally paralyzed. Song Chibin got rid of the betrayal and started a new life.
