Lawyer Qin Guan had a happy career and family, but he had an extramarital affair with his assistant Qi Min. During a business trip, he accidentally died during a "choking game" and faked the scene to dump the body to cover up the crime. Subsequently, he was blackmailed, and key evidence such as the suitcase where the body was hidden and the stockings that strangled people were manipulated, suspected to be the work of Qi Min's mother or love rival. In fact, this was the layout of his wife Xu Ruyi - she had long been aware of the betrayal and suspected that Qin Guan was involved in the death of her parents, so she secretly cooperated with Qi Min to induce Qin Guan to expose his crime, and finally brought him to justice through the police.