Nobody Knows (2020 - 2020)

The series "Nobody Knows" is a Korean crime detective story about the search for a serial killer. A young girl becomes a victim of a brutal murderer, but the police are unable to apprehend the culprit or even uncover his identity. The victim's best friend cannot forget this tragedy, let alone forgive the killer for his sins. Driven by a thirst for revenge, she enrolls in the police academy and becomes a principled and fearless detective. Now, she awaits a face-to-face encounter with her most vicious enemy and her worst nightmare.