BORDER S01E02 - Episode 2

A serial killer stalks the city. Six young women have been found, tortured and stangled at odd locations. A car video system has recorded the last victim, walking with a fit, young adult male. He is identified, and the detectives go to bring him in for questioning. When they arrive, the man uses a large knife to kill himself, which derails the investigation. Detective Ishikawa, after a headache attack, sees the dead man, who freely admits to torture and murder. A cat-and-mouse game ensues, as the detective must find an abducted seventh victim with clues from the smug killer.