My name is Sam, I used to be a famous detective. Since I was seriously injured and resigned a year ago, I quit this job and married my girlfriend Agatha and we have a lovely daughter. Although I am not a rich person, I really love my family.

One day, my phone rang and I answered the phone only to hear a strange sound, like the sound of a heartbeat monitor in a hospital, beep, beep, beep…What is this? I just hung up without thinking too much. Phone harassment was so common these days. The next day, I took a temporary job at a nearby post office. Today was a bit different. There were no guests, so I took out my mobile phone and planned to play games to pass the time. At this moment, an unknown number suddenly called, and I picked up the phone again. I didn’t even have time to respond. Suddenly, I had a bad headache and I fell to the ground and trembled crazily. I even lost my strength to pick up the phone and ask for help.

The most terrible thing was my colleagues next to me turned into statues and scattered like grains of rice. Before I was completely in a coma, I saw a man in black abducting my wife and daughter. When I was still trying to do something, my eyes suddenly turned black. With the sound of a gunshot, my phone suddenly beeped. This deafing sound ran through my head, until I couldn’t hear them anymore…….

The doctor put down the stethoscope and said, ‘This schizophrenic prisoner has passed away. Please inform the police.’ The nurse asked ‘Prisoner? What crime did he commit?’ The doctor stared at the prisoner's body for a while, ‘He killed detective Sam and Sam's family.’