Review of I Saw the Devil

It's a very violent and gruesome movie but it just does not make sense that the police is so incompetent to catch 1 person who is easily match the description. I wanted to give 8 stars for great actor and plot but the main character acted by Lee Byung-Hun is just NOT very smart. If he wanted to torture the killer, he could have just keep him in a room and torture him for days instead of causing more harm to other innocent people. Ok it's a movie and it does not make sense but it make him look stupid as main hero.