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.
| Writing | Elmarie Botha | Writer |
| Writing | Berdene Burger | Writer |
| Writing | Lorraine Burger | Writer |
| Directing | Berdene Burger | Director |
| Directing | Liezl Spies | Director |
| Directing | Nina Swart | Director |
| Crew | Jay Marais | Cinematography |
| Sound | Juan Kindo | Sound Designer |
| Costume & Make-Up | Mary-Sue Morris | Wardrobe Designer |
| Art | Stefan Benade | Production Design |
| Costume & Make-Up | Sulani Saayman | Makeup Designer |