Liu Tao's address was located in the old city. The three of them searched with their mobile phone’s GPS for a long time before they got to the front of a standalone two-story building. Chen Shi went forward and knocked on the door. No one answered the door. He walked a few steps back to look up and say, "Is there anyone?"

Lin Dongxue put her ear to the door to listen. Her eyes suddenly enlarged and she beckoned them over. "Listen to what's going on inside."

When Chen Shi went to listen, there was a faint groan from a man in the room, which seemed to be one derived from pain.

"Could it be that someone had an accident at home?" Lin Dongxue guessed. She had heard of a middle-aged man who fell at home after getting drunk and died suddenly in the afternoon.

Chen Shi thought about...