Based on a Japanese manga, “Kanna-San, Daiseikou Desu,” this story revolves around Kang Han-na (Kim Ah-jung), an overweight phone sex employee and secret vocalist for Ammy, a famous Korean pop…

1986 Gyunggi Province. The body of a young woman is found brutally raped and murdered. Two months later, a series of rapes and murders commences under similar circumstances. And in…