Zhou Mingyuan is an ordinary middle school teacher, and his daughter Zhou Xiaotang is everything in his life. His daughter's relationship with her rich second-generation boyfriend Lin Xiuyuan is a hidden worry in his heart. On this day, Zhou Mingyuan received a notification from the police that his daughter died in the hotel room. Preliminary investigation showed that it may have been an accident caused by drug overdose, but there were signs of struggle at the scene. Zhou Mingyuan suffered a nervous breakdown when he saw his daughter's body in the morgue. The details revealed by the forensic doctor showed that his daughter suffered violence before her death. Although the evidence pointed to Lin Xiuyuan, he hired an elite team of lawyers based on his family's power and was eventually released due to insufficient evidence. What choice will Zhou Mingyuan make?