At the end of the 19th century, Antonio "The Black Crow", a wanted criminal with a long history of crimes, was found hanging in the town of Black Pine in a blasphemous ritual gesture.
An even stranger thing happened immediately: eight people with different identities broke into the police station and declared one after another - "I killed this person." Different from previous murder cases, they worked hard to prove their suspicions, and under the temptation of a high reward, they rushed to plead guilty.
Eight people with completely different social identities all have impeccable motives for committing crimes, a seamless committing process, and even know the details of the scene very well.
The old police detective Cole and the legendary detective Victor are forced to face this absurd dilemma in the history of reasoning. When everyone is trying to prove that they are the murderers, the only truth is drowned under eight perfect lies.