Xu Cheng

Two married couples adjust to the vast social and economic changes taking place in China from the 1980s to the present.

Zhou Yi is a Communist Party agent. In order to facilitate him lurking inside the enemy, the organization dispatched a female operator, Gu Qiuyan, to pretend to be his wife. However, in the face of Gao Bin, the thoughtful and powerful opponent of the Secret Service, the true identities of the two faced severe challenges.