A serial murderer who targets pedophiles that have recently been released from prison is loose on the streets. Meanwhile, the 12-year-old sister of Ensar (Nejat İşler) is raped.
Ensar, who is a soldier in the Southeast region of Turkey, learns of his sister's death and the reason behind her suicide when he returns home after finishing his military service. When Ensar vanishes, he becomes the primary suspect in relation to the serial murder case.
Chief Inspector Abbas (Uğur Yücel) and Inspector "Scorpion" Celal (Kenan İmirzalıoğlu) of the Criminal Investigation Department in Istanbul take over the case. The murderer is very clever and acts extremely fast. What is more, the public supports the murderer for exacting punishment on the guilty..