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In a border town, there was a murder in an ancient temple, an old nun was killed, a priceless antique was stolen, and the case became confusing... In the end, Wang Laosan fought against everything and became the scapegoat. With a gunshot, Wang Laosan was executed. At the same time, the facts of the case were buried deep underground by Wang Laosan. A generation of detective Zhao Yi was inexplicably dismissed from his job during the investigation and became an unemployed vagrant. He still did not give up on tracing the truth. During an undercover investigation, he discovered that the mastermind behind the case was the Tian family. So Zhao Yi began to direct a big drama and became the personal bodyguard of Tian Ni, the eldest daughter of the Tian family. Tian Ni had a secret affection for him. After the two fell in love, Zhao Yi successfully married into the Tian family. On the second day of their wedding, he began to take action against the Tian family...