This episode explores the psychological foundations of 'folie à deux' - the shared psychosis that emerges when two people become codependent and reinforce each other's delusions. We'll examine early case studies, such as the infamous 'Papin sisters' who brutally murdered their employer's family, to understand how individual mental illness can escalate into joint criminal acts. We'll also discuss the role of power dynamics, trauma, and social isolation in creating the conditions for this shared psychosis to take hold. By the end of this episode, listeners will have a solid grasp of the key factors that lead to the 'madness of two'.

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