Kai is an arrogant private detective, Kyungsoo is his Watson puppet, and together they face great evils and save lives--but wait, is Kyungsoo in danger of getting third-wheeled? And who is that woman?

Detective-Inspector Kim Jong In is investigating a case about a murdered security guard and a painting that is rumored to be fake. Being a person who does not care about things such as arts, he finds himself lost and receives an unexpected help.   Sherlock inspired fic. :)