The owner of the Detective Bookstore gets involved in a murder case.

Emerging details in the investigation begin to reveal everyone's complicated personal agendas.

Mu Qing finds key evidence.

Chen Wei's friends face their own challenges.

Another corpse with the same murder pattern appears on the beach.

Chen Wei turns to Mu Qing for help.

Mu Qing finally has the opportunity to show her talents.

Chen Wei confesses his past crimes to Mu Qing.

The criminal group intends to prevent Mu Qing from continuing the investigation.

The price of solving this crime may be too high for the Mystery Club.