"Iris" has a reported budget of 22 million USD, making it the most expensive Korean drama to date (10/2008).
Plot
Hyeon-jun Kim (Byung-hun Lee) is an assassin who belongs to a top secret organization known as the "NSS" whereas T.O.P (Seung-hyeon Choi) is an assassin who works in another secret organization located in the United States called "IRIS" and was ordered to kill Kim Hyun Joon. Seung-hee Choi (Tae-hee Kim) is a psychological analyst who plays an important role in bringing Hyeon-jun Kim to the "NSS."