讲述各种各样性格的刑警，通过分析案情一步步破案的过程。This drama outlines the various stories in which detective with strong personalities solve their ways through crimes with different investigative methods and know-hows.
何有俊,朴持厚,李承協,赵汉哲,金钟泰,车清华,徐惠媛,김선민,한유은,한진희
李濬荣,郑恩地,李美度,李承宇,朴成妍,李芝慧,洪允华,이준환,金建宇
崔秀英,孔明,金成铃,金相镐,赵胤熙
咸恩静,徐俊英,朴允载,李歌领
沈利煐,宋昌义,崔贞允,郑英燮
姜河那,高旻示,金新绿,刘秀彬,裴那拉,洪华妍,吴敏爱,裴侑蓝,尹炳熙,李仲玉,柳演锡