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Believe but be doubtful.
A serial killer is caught for his seventh murder. A cop tries to solve the first six cases with the killer's help, but starts to suspect that he has ulterior motives. Based on a true story.
Kim Tae-gyoon
Kwak Kyung-taek
$7,120,949
$29,433,930
Kim Hyeong-min
Kang Tae-oh
Kim Soo-min
Detective Jo
Chief of Crime Department
Ji-hee's Grandmother
Lawyer
Jeong-bong
Detective Han
Hair Salon Manager
Kang Sook-ja
Hyeong-min's Father
