I saw a Korean movie named Mother(Japanese title:母なる証明) on 30th December. And it became my best movie in 2009. It shows us greatness of mother's love for own child.
The main character is a mother. Her son is arrested as murderer, but she doesn't believe it. He has mental deficiency. So he get disadvantage for his interrogation in the police.
He usually forgets his things, but he can remember them when he thinks hard. So she asks him about the murder case at their meeting in the police and gets new keys to solve the mystery.
This movie is basically mystery and has a lot of social problems. So you might have a heavy impression to it, but it also has element of comedy. I laughed on a lot of points in the story.
And this scenario is wonderful! Mother, her son and others have each features. And they concern the story or become keys to solve the mystery. It's really beautiful and comfortable scenario.
The director named Bong Joon-ho is great too. I have seen his another movie named The Host a few years ago. It is a monster panic movie and so interesting.
And a few days ago, I saw another movie named Memories Of Murder on DVD. It is similar to Mother. It is mystery, comedy, great scenario and has a lot of social problems.