Happy Killers

On a rainy Thursday night, a serial killer appears. "I," who has become homeless since the business went bankrupt and travels around the streets, collects articles on serial killers and studies his criminal behavior. There is a goal that I must achieve: to leave 600 million won for my only daughter Harin! To do so, I have to be murdered so that insurance money can be paid to my daughter. Finally, a rainy Thursday night comes. Can he meet the murderer?