Kim So-San is a Kisaeng of Kook Il Kwan who is in fact a secret agent of the communist party in South Korea. It is because money offensive from a member of an action group, Lim Chung-Shik, why she becomes member of the party. Prosecutor Oh Je-Do of Special Investigation Bureau aims at rounding up communists party by arresting So-San. Kim So-San attempts suicide in vain because she is troubled by being a double dealer. Once again she is deceived by Lim Chung-Shik's honeyed words and then she is ordered to assassinate Prosecutor Oh. Soon she is to take the action that is revealed a moment later. The secret of communist party is disclosed and they are arrested by Special Investigation Bureau.