Marlon Russel Swarts

The unit specializes in the investigation of serial murders and is led by Van der Bijl, a former murder and robbery detective who gained fame for his handling of several high-profile cases. Each episode focuses on a serial killer. The main character, Colonel Piet van der Bijl, also known as Die Byl, is loosely modeled on the famous ex-detective Piet Byleveld.

A teacher at a struggling school is devastated by the death of her star pupil at the hands of a criminal ex-boyfriend. She accidentally avenges the murder and quickly finds herself in the gray area of vigilantism, and surrounded by the challenges of today's youth.