Popular actress Lin Xia died mysteriously on the set. The blue rose that appeared at the scene was strikingly similar to the murder of Shen Zhou's mother fifteen years ago, revealing the past. During the investigation, it was discovered that there were secret connections between multiple seemingly unrelated murder cases. All evidence pointed to a huge underground criminal network, and there may be an insider within the police station. Ji Chenzhou and Su Li gradually developed feelings during the life and death crisis, but the secrets they each concealed became a time bomb in their relationship, especially Ji Chenzhou's unknown true purpose.
