A beautiful college girl Lee Nan-Hee falls deeply in love with one of her classmates Park who is a poor student. He commits a murder after he is contrived by a secret agent dispatched from North Korea. Nan-Hee takes a part in the crime for her boy friend. Nan-Hee makes love with the agent in this situation, and is trained to assassinate the chief of investigation Kim. However when the golden opportunity to kill him comes, she can't carry out her mission due to her pangs of conscience and attraction to him. Instead she informs him a stronghold of secret agents who are cleared out later.—Korean Classic Film

Nan-hie is slowly coerced into a life of crime by her boyfriend, Park. She is trained in assassination techniques and sent to assassinate the head of the Special Investigation Unit. However she cannot complete her mission because she suffers from pangs of conscience and a deep attraction to the investigator.—Anonymous