Kim Go-Eun's character, Bok-Soon, runs a street stall and takes care of her younger sister, known for her uncontrollable rage and infamous reputation as the "psycho bitch" in her neighborhood. Her life is disrupted when she crosses paths with a serial killer, Tae-Soo, who kills her sister after she may have stumbled upon the truth about his crimes.
Monster
Fueled by a burning desire for vengeance, a woman sets out on a perilous journey to confront the merciless serial killer responsible for her sister's brutal murder.
