The Customer Is Always Right

Seemingly good-natured Ahn Chang-Jin owns his very own barbershop in a quiet town. He makes sure to have the place immaculate for customers and even plays classical music for just the right mood. Furthermore, Ahn Chang-Jin is married to the beautiful Jun Yeon-Ok. Life seems great for Ahn Chang-Jin ... that is until Kim Yang-Gil
begins patronizing his barbershop.
Kim Yang-Gil tells Ahn Chang-Jin that he knows his secret. Kim Yang-Gil then asks for hush money after each visit, with the amount doubling every visit. Soon, Ahn Chang-Jin finds himself having to borrow money from loan sharks to keep Kim Yang-Gil quiet. Ahn Chang-Jin then decides to hire a private investigator
to dig up some dirt on Kim Yang-Gil.