A central aspect of Carr's modus operandi was preying on hitchhikers as his victims, which is how he first encountered Fishman.
The third story involves picking up a hitchhiker, which can be a risky situation and potentially lead to dangerous encounters.
The podcast episodes provided cover various aspects of hitchhiking, from its dangers to the experiences of both victims and perpetrators.
Several episodes explore the risk of hitchhiking, with stories of encounters with potentially dangerous individuals, including serial killers who specifically targeted hitchhikers as victims. For example, the episode 'The 'Hitchhiker Slayer' - Who was Thor Christiansen?' details the disturbing case of a necrophiliac serial killer who preyed on hitchhikers.
Other episodes, such as 'Introducing: My Friend, the Serial Killer' and 'My Friend, the Serial Killer | 1. Local Man', explore the personal experiences of individuals who unknowingly encountered serial killers while hitchhiking.
The podcast episodes also highlight the broader societal and cultural aspects of hitchhiking, including its history, ethics, and prevalence in media and pop culture.