This serial killer specialist is well known internationally for his research and expertise about criminal profiling. Stéphane Bourgoin, has met over 50 serial-killers throughout the world and has made many documentaries and has published a great deal of books about this phenomenon. And this is not just some morbid fascination. Bourgoin is really trying to understand what makes these killers tick. He already honoured us with his presence in 2012, alongside Maxime Chattam. 5 years later he comes back to the BIFFF for a master class on serial killers with his partner in crime Frank Thilliez.