"Die Byl" is a film based on real South African detective Brigadier Piet Byleveld , known for his 99% success rate in tracking serial killers.

"Die Byl" follows the life and work of Piet van der Bijl, a brilliant detective who specializes in the tracking of serial killers. Based on real detective Piet Byleveld from South Africa who was alleged to have a 99% success rate in his 40-year career before his retirement in 2010.