You are South Korea's most successful detective. You've always worked with the cops, helping them catch problematic criminals with your skill.

And this is Lee Know, the assassin who has been wanted for exactly 9 months but has not been found.

One, while you are waiting for the opportunity to catch this criminal organization red-handed, the electricity suddenly goes out in the officer's building and when it comes back, that figure is seen in front of you, Lee Know..