"The Scarecrow" plunges retired criminal profiler Tae Ju back into a world he thought he'd left behind 33 years ago. A chilling summons arrives when an imprisoned serial killer, newly linked to additional unsolved deaths through DNA evidence, insists only Tae Ju can prove his innocence. This forces the acclaimed profiler out of a long retirement to tackle these complex cold cases.As Tae Ju re-enters the high-stakes investigation, he's confronted by ambitious prosecutor Cha Si Yeong, with whom he shares a difficult past. The pursuit of the truth behind "The Scarecrow" murders is anything but straightforward. Dark secrets emerge, suggesting Tae Ju's involvement might be far deeper than he initially knows. He must navigate intricate clues and personal demons, racing against time to uncover the real culprit. Can Tae Ju finally close the chapter on these haunting murders for good, or will a shocking new twist upend his life completely?