Episode 25
SERIAL KILLER: Dennis Rader aka B.T.K

On the outside, Dennis Rader's childhood seemed completely normal. But inside his head were demons that couldn't stay repressed for very long. Rader's fantasies of bondage and "having his way" with women became reality when he began "trolling" for victims and murdering them after tying them up. With ten victims, multiple cooling off periods, and playing games with the media, it would be 30 years before authorities would piece together who was behind the identity of "BTK".