Lin Xi is a lawyer. Accidentally using her father's car, she finds that the car navigation system has been fixed on the same strange apartment address for years, with high-frequency trips and a regular schedule. After following the car there, she discovers that her father's affair partner is her most trusted senior schoolmate. She then searches for evidence to expose her father's hypocrisy. Her mother was originally a company president who wanted to return to the family after pregnancy and handed the company over to her father to manage, but unexpectedly suffered betrayal. Lin Xi decides to help her mother win back everything.