The story is about a jobless man who wants to own a supermarket and is being taken care of by his mother. Not only that, He also has a special ability to memorize all the details of what He saw. Suddenly, there is a crime where several women got killed in their area. That's where the story becomes interesting since they have to find the culprit. In this series, Lee Kwang Soo become much more serious in acting as a detective rather than comedy as always that He's doing.