This show asks law enforcement, doctors, and news reporters to talk about the psyche of serial killers. It explores what makes them do the things they do and why they do them. They go back to see what made them start on their murderous paths, and they take a look at how they were caught. Each episode compares and contrasts two different serial killings. This show is interesting, but it doesn’t really go too deep into analyzing the psyche of the murderers. It’s just a rehashing of their crimes, and it’s not worth a watch.