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.
Episode 1
Season 1 • Episode 1
Episode 2
Season 1 • Episode 2
Episode 3
Season 1 • Episode 3
Episode 4
Season 1 • Episode 4
Episode 5
Season 1 • Episode 5
Episode 6
Season 1 • Episode 6
Episode 7
Season 1 • Episode 7
Episode 8
Season 1 • Episode 8
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