Lu Yanchen is about to secure the group's equity and his career is ushering in its highlight moment. He plans to share the good news with his wife, Su Manning, but instead receives a vehicle violent vibration alert. He rushes to the scene and finds that Su Manning is full of lies, with suspicious traces hidden everywhere inside the car. Lu Yanchen investigates secretly, from the car wash, the air conditioning filter, the deleted driving recorder, to the continuous courier delivery records of several years, and finally digs out the hidden secret. To cover up the truth of the illegitimate child, Su Manning fabricates a pregnancy check report and wears a simulation belly to deceive everyone.