Citizen scientist Lao Luo (played by Huang Bo) has devoted himself to researching various weird little inventions for many years, and built his own underground city in the factory compound. and laboratories. Unexpectedly, his high IQ led to emotional imbalance. An illegal fund-raising case caused Lao Luo to break up his wife and children, and turned against his old friend Boss Zhao (played by Ma Shuliang). In order to regain his dignity, Lao Luo decided to use extreme measures - digging a tunnel to sneak into Zhao's house and steal back 400,000 yuan belonging to the neighbors... At the same time, Lao Luo's son Xiao Luo (played by Du Haitao), who was studying in Beijing, was watching. He falls in love with Zhao Yue (played by Huang Yi), the daughter of Boss Zhao who is always lovelorn, and starts a "revenge plan" that coincides with his father's. He wants to "cheat money and sex."