Death Note (jdrama) = main chara wants to hunt down his opponent, opponent wants to hunt down main chara, main chara is actually evil and therefore wants to kill his opponent
Bloody Monday (jdrama) = main character is hacker who has to hunt down criminal, it's harder than it looks tho because criminal is intelligent
Maou (jdrama) = main chara is police and wants to hunt down criminal not knowing that criminal seeks revenge, this is the best revenge drama I've ever watched
Majo Saban (jdrama) = a trial, it's unclear what happened and who the real victim is and who the criminal, this was full of twists and unexpected ending