Detective Nam-soon goes undercover with her partner Detective Ahn to investigate the counterfeit money. She discovers that one loyal henchman, Sad Eyes, a beautiful swordsman with a pale, blank face, is related to the truth. Nam-soon and Sad Eyes confront each other in a series of duels and become confused between love and obligation to duty.
| Actor | Role |
|---|---|
 Ha Ji-wonNam-soon | Nam-soon |
 Gang Dong-wonSad Eyes | Sad Eyes |
 Ahn Sung-kiDetective Ahn | Detective Ahn |
 Song Young-changMinister Song Pil-joon | Minister Song Pil-joon |
 Yun Ju-sangBong-chool | Bong-chool |
 Kim Bo-yeonJangot Woman | Jangot Woman |
 Lee Han-wiWoman's Husband | Woman's Husband |
 Kim Jung-taeGa Du-chi | Ga Du-chi |
 Do Yong-guPublic Officer | Public Officer |
| SSim Cheol-jongMachookji | Machookji |
| BBae Joong-sikDetective Bae | Detective Bae |
| HHwang Ui-dooDetective Hwang | Detective Hwang |
| JJang In-boDetective Jang | Detective Jang |
 Park Myung-shinGi-saeng's Mother | Gi-saeng's Mother |
 Yoon Ga-hyunMistress | Mistress |
 Seo Dong-sooBongchulpae | Bongchulpae |
| YYoo Yeong-wookDetective Yoo | Detective Yoo |
| PPark Seung-hoCaptain Park | Captain Park |
| NNo Hyeong-seokGuy | Guy |
| HHam Geon-suMachookji's man | Machookji's man |
 Lim Hae-rimElder | Elder |