Pieta (2012)
Directed by Kim Ki-deok
The movie "Pieta" pivots around the enforcer Kang-do, played by actor Lee Jeong-jin, who makes a living in very cruel ways, working for a loan shark. He is known to mutilate body parts of his debtors, as doing so gives him some insurance money. One day, he comes across a lady who insists on being his mother. At first, he neither believes what she says nor admits her into his home. She keeps wandering around, despite his cruel abuse and maltreatment. His mind is disturbed, however, and with the passage of time he decides to test whether or not what she says is true. He decides to force her to swallow a piece of flesh sliced off his thigh. She does so. This leads him to admit that she is his mother.
From then on, his life begins to change. He suddenly shows compassion to a debtor who says he is okay with becoming disabled if it can save his baby. He starts to show a warm heart. He sometimes buys presents for his mother. Kang-do feels bitterness at seeing a debtor commit suicide. The petty thief even feels "fear" that his mother might fall victim to any revenge scheme targeted against him. He decides to stop the loan sharking game.
One day, however, Kang-do's mother disappears, pretending to be captured. The main character searches everywhere for his mother, visiting all the possible suspects. During the journey, he comes across a lot of people living in dismal conditions, all affected by his earlier cruelty. One was disabled and has to live with the hardship forever. Another family was living in tears, missing a deceased family member. He also met a person who curses him every day.
Kang-do never can find his mother, anywhere. Later, it turns out that she is not his mother. She is the mother of a man who killed himself because of one of Kang-do's severe attacks. She secretly planned to let him learn how terrible it is to see a beloved one die in front of your eyes. To do so, she pretends to kill herself by falling from the top of an abandoned building in front of Kang-do's eyes. At that moment, however, the woman who we thought was his mother is pushed off the building to her death by another woman. This new woman who suddenly showed up at the building turns out to be the mother of another victim killed by Kang-do. The former enforcer buries the corpse of his "mother" and then kills himself in the final scene.