What’s the true meaning of empathy? Well, if someone is still unclear, then Netflix’s ‘Mindhunters’ is a series they should watch, to perhaps have a better understanding of the word. The Joe Pehnall-created series, based on the 1995 book, ‘Mindhunter: Inside the FBI's Elite Serial Crime Unit’, written by John E. Douglas and Mark Olshaker, takes the viewer inside the psyche of a serial killer.