What specific story does the Korean movie "Oldboy" tell?

The film tells a story of revenge: the protagonist Wu Daxiu was suddenly kidnapped on his way home drunk and imprisoned in a private prison for 15 years. After he was able to see the light of day again, he began to made his own revenge plan. In the process of revenge, he met a young sushi clerk, tracked down his enemy with the help of his old classmates, and successfully punished the prison guard. At the same time, the enemy behind the scenes Li Youzhen also surfaced.

At the end of the story, all the reasons are explained: the main messenger was imprisoned for his own revenge. The male protagonist accidentally discovered the unfaithful relationship between him and his sister, and the sister committed suicide. So the main messenger made careful plans and Let the male protagonist fall in love with his daughter (female shop assistant) and have a relationship. In his opinion, this is his best revenge.

The male protagonist and his daughter have fallen in love. For some reasons, he used hypnosis to make himself forget all this and still live with his daughter. Extended information

"Oldboy" is a thriller film directed by Park Chan-wook and starring Choi Min-sik, Yoo Ji-tae, Kang Hye-jung, etc. The film was released in South Korea on November 21, 2003.

As the second part of the "Revenge Trilogy", "Oldboy" still continues the theme of revenge for the loved one, but the director made a huge change in the processing of the image. . The twists and turns of the plot and the excitement of the conflict, coupled with a large number of camera movements and character actions, coupled with the high-pitched and passionate symphony, add more entertainment elements than the previous work "I Want Revenge".

The film is expressed through real images, which challenges the psychological limits of the audience not only visually but also morally. The movie provides a profound description of life, ethics, love and psychology, and brings deep and profound thoughts to the audience.