Liu Yunyan, a modern killer, once traveled through time and became the "evil wife" everyone shouted at in the compound in the 1970s. The original owner was divorcing her husband Zheng Tao because of his family's financial difficulties. But Liu Yunyan knew that Zheng Tao would have great achievements in the future and also had a hidden mission to protect cultural relics, so she decisively decided to stay.
Faced with the difficulties of her best relatives and the secret sabotage of spies, Liu Yunyan relied on her strong skills and intelligence to resolve them one by one. She worked hand in hand with Zheng Tao, from uncovering petty thieves in the compound to uncovering the shocking conspiracies of international espionage organizations. In crisis after crisis, the two gradually developed a tacit understanding and a secret love.
As the investigation deepened, they discovered that Zheng Tao's father was actually behind the case of missing cultural relics. After going through hardships and obstacles, the two found the key clues, successfully recovered the stolen cultural relics, and caught all the spies. In this process, Liu Yunyan also gained recognition from the neighbors of the compound, and lived a happy and stable life with Zheng Tao.