The play tells the story of Lu Xiaobai, who wanted to be a low-key and comfortable boy in the market, and by accident, he got into trouble with Shen Junye, a female captor who is jealous and hateful. In desperation, Lu Xiaobai signed a "deed of selling his life" and entered Shen's mansion. The two went from being hostile at first to understanding and admiring each other, and then joined hands to capture criminals, solve unsolved cases and reap beautiful love.