Terror on the High-Speed Train

Identity mysteries, tiny scratches, the top donor, art and death, the poison of craftsmanship, a mysterious caregiver, an abandoned theater, a silent witness, midnight redemption... A serious crime takes place aboard a high-speed train, forcing it to make an emergency stop. Cheng Yang, Zhang Jingyu, and Su Su respond with the forensic team, only to discover human tissue in the cramped train restroom!