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Cha Su-yeol, a police officer who has long despised his mother, the notorious 'Mantis' serial killer, must reluctantly turn to her for help when a copycat killer emerges.
Season 1
8 Episodes
E1 Episode 1
E2 Episode 2
E3 Episode 3
E4 Episode 4
E5 Episode 5
E6 Episode 6
E7 Episode 7
E8 Episode 8
