3 hunks! I mean, three North Korean spies and highly trained assassins.
If you can watch the whole movie without laughing, you're not human!
It's an action-comedy and my favorite Korean movie of all time!
Lieutenant Ryuhwan who goes by the undercover name of Dong-gu (Kim Soo Hyun) is a top of his class killer from the North who is undercover in South Korea as a town fool who falls down stairs multiple times a day, is picked on by children, and who always has a runny nose. But, he can kill you in your sleep and you'll never suspect him.
All about showing some skin and bromance!
Haejin (Lee Hyun Woo) is the youngest North Korean agent who is disguised as a high school student. He is a huge fan Dong-gu (Kim Soo Hyun) who is also his captain.
Agent Hee-rang who goes by the undercover name of Min-su (Park Ki-woong) who is disguised as an aspiring musician and is as equally skilled as Dong-gu. However his musical skills are really lacking!