South Korean thriller with unconventional story - well worth seeing

Errinert overall rather at Scandinavian thriller. But nevertheless is an Eastern. I will not go big on the story because Spoilergefahr.
It revolves around a coffee owners from a good family which it has certainly brought something to prosperity in the growing South Korea.
He learns that his half brother convicted, the black sheep of the family - has disappeared ... The small business has for a lie? brought his older brother on the straight and narrow from childhood probably guilt ... and a washing compulsion ... From here starts ne mysterious search for the brother with murder and manslaughter, verängstiger family and especially what constitutes an exciting thriller.

Against the masterpieces of Park Chan Wook, or heavy on the stomach lying "superclass Thriller" as "The Chaser" comes this film obviously not Herran. But he stands out from the large to the low budget thriller of this kind and is definitely worth seeing.