He was once the top forensic student in the country, and was the only reliable partner that Yan Liang admired when he was young.Many years later, Luo Wen's business trip caused him to say goodbye to his wife and daughter forever.

Since no one was found alive or dead, the police had no evidence and could not rely on it.So he searched by himself and found only an unfamiliar fingerprint. Based on this, he embarked on a long road of search.