A brief sexual reference is made in a Episode 2. Zak states the people who were locked in the Prison and he states, "murderers, rapists, etc."
In Episode 4, "Ted Bundy Ritual House" constant references of a crude sexual act, "rape" is made. Zak explains how Ted Bundy raped countless victims against their will.
Profanity
Mild
Frequent uses of "hell, ass, crap", Bleeped/Infrequent uses of "f**k, shit, bitch, etc."
Alcohol, Drugs & Smoking
Mild
In some interviews, cigarettes are seen, as well as some beer bottles.