Du-man, chief detective of the Seoul Police Agency, feels like someone has been spying on him. The trash bag placed outside disappears and unidentified peanut shells are found on his apartment steps. Someone is really watching him. Since his wife, Hee-ryeong’s personal information has been leaked, she is also in danger. From the apartment’s CCTV Du-man spots a suspicious man. He must catch him before Hee-ryeong, who suffers from panic attacks and anxiety, senses that something is amiss.

Contrary to his hopes, things get more complicated. Two murders occur and both victims were women killed by having their radial artery severed. Also there were mysterious peanut shells and traces of surveillance, same as Du-man’s case. Du-man discovers that both victims recently had their refrigerators fixed by the same after-service repairman, and realizes that Hee-ryeong has also had her refrigerator fixed recently by the same man.
Du-man and his team raid the workroom of the repairman. However, the repairman is found dead inside his refrigerator with his radial artery severed like the two victims.

Investigation runs into difficulties. Then the repairman’s cellphone, which had been missing, sends a signal. When he reaches to the place, he encounters tragedy: Hee-ryeong was dead, with their radial arteries severed. In despair, Du-man’s phone rings.
“Load the silver bullets and pull the trigger. Shoot! Then everything starts over.”
To rewind time, he pulls the trigger of his revolver.