Pls Help me find this movie

Hey everyone, i'm looking for a Kdrama with a crime case about a woman with a syndrom called Munchausen (People with this disorder are willing to undergo painful or risky tests to get sympathy and special attention). I only remember the scene in the movie that she beat herself up and harmed her little son to get other people's attention and care. Does anyone know the name of this movie?

Thank you'll.