一位警探因犯罪組織而失去所有後，透過生物科技獲得特殊能力，打算一報血海深仇。
此劇講述鄉村少年尹鍾宇到首爾生活，並在考試院裡遇到種種怪人的故事。
The Return of Iljimae is a 2009 South Korean historical action television series, starring Jung Il-woo in the title role of Iljimae, Yoon Jin-seo, Kim Min-jong and Jung Hye-young. It aired on MBC from January 21 to April 9, 2009 on Wednesdays and Thursdays at 21:55 for 24 episodes.
The series is based on comic strip Iljimae, published between 1975 and 1977, by Ko Woo-yung which was based on a Chinese folklore from the Ming dynasty about a masked Robin Hood-esque character during the Joseon era. MBC bought the rights to the comic strip for their adaptation, which was to star Lee Seung-gi in the title role of Iljimae. However he pulled out and was replaced by Jung, which makes him the third Korean actor to play the hero following Jang Dong-gun and Lee Joon-gi for Iljimae.
Seeking a greater justice, a band of homeless assassins flays their human targets and delivers the tattooed skins as proof of a contract fulfilled.
Duangjan is a cold-blooded, young assassin for a mafia group. One day, due to a failed mission between Duangjan and Lok — an assassin within the same group — Duangjan ends up falling off of a cliff. However, she is saved by the head of the national park, Atiruj. When she wakes up, Atiruj realises that the young woman who he saved has developed amnesia. The once cold and calculated killer suddenly turns into a cheerful little girl and finds herself not only with a new name "Chao Chao", but also a fake husband, Atiruj — who just so happens to be escaping his mother who was determined to marry someone else.
著名殺手“十面埋伏”偶遇“野狗”，後者恰好是黑幫“黑豹”的僱傭殺手。然而，『野狗』卻有一個不能向『飛刀』吐露的秘密。由於黑幫將他們標記為叛徒，他們陷入了危險。他們能否克服重重困難，保住愛情？
Liu Xiang Ciang had a dream where she was in Kingdom of Chu and became assassin, and had four opportunities to assassinate the prince Mu Chun Shen. If she failed, she was poisoned to death. In order to complete the assassination mission, she turned into a maid, a guard, and a beggar boy in the prince's mansion. Every time the assassination was about to succeed, there would be unexpected surprises. In the process of fighting against Mu Chun Shen, she gradually discovered Mu Chun Shen's kindness and sense of responsibility, and gradually fell in love with Mu Chun Shen. At the same time, she realized that there was a background/history behind this assassination mission.