Amateur profiler Peter Brendt's shocking reveal that not just one but two active serial killers are responsible for the ten bodies discovered along Ocean Parkway.

In the wake of Shannan Gilbert's funeral, family lawyer John Ray presents Josh and Rachel with confidential testimony that implicates a local doctor and Oak Beach resident in the death of the young escort.

Josh and Rachel, continue their search for the Eastbound Strangler in Atlantic City.

Josh and Rachel are in Florida looking into the case of the Daytona Beach Serial Killer.

After a private investigator's alarming revelation that there exists long haul truckers moonlighting as serial killers terrorizing America's interstate system.

Discovering that the current systems in place to detect serial killers are severely broken, and suffering from an inability to connect the dots.

With the help of local advocates and ex-FBI, Rachel and Josh search for eight missing women on Albuquerque's West Mesa when they discover they may be dealing with something even more sinister than a lone serial killer.