Through the Darkness Season 1 (Complete) (Korean Drama)

Back in the 1990s, the citizens of Seoul were gripped with a paralyzing fear after a series of brutal attacks and murders occurred. A mysterious figure dubbed ‘Red Cap’ was stalking women on the streets then killing his prey, seemingly without provocation. His habit of striking at random made it impossible for the detectives to predict his next move. At the top of their minds is what could be triggering him.