Hidden Brain

Murder Mystery

December 1, 2025

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  • The enduring popularity of violent and morbid entertainment, explored in "Murder Mystery," is likely rooted in an evolutionary mechanism called 'morbid curiosity,' which serves as a form of predator inspection to learn about threats without direct danger. 
  • Consuming scary or violent media, such as horror films or true crime, can paradoxically serve as a coping mechanism, helping anxious individuals dislodge rumination cycles by providing a controllable, identifiable threat. 
  • Contrary to popular belief, research suggests that people drawn to dark content, like horror fans, are not inherently less empathetic or compassionate; in fact, engaging with fictional danger often requires and may even enhance cognitive empathy. 

Segments

Morbid Curiosity and Real-Life Tragedies
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(00:05:00)
  • Key Takeaway: Real-world violent events, like campus murders, cause a measurable surge in the consumption of scary entertainment among those geographically close to the incident.
  • Summary: Psychologists studying students after a campus murder found they were significantly more likely to choose a scary film, In Cold Blood, as a reward. This effect was strongest for students in the same dorm as the victim, demonstrating a localized increase in morbid curiosity following a real threat. This mirrors the concept of predator inspection seen in animals.
Mortal Kombat Sales Disparity
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(00:07:36)
  • Key Takeaway: The more violent version of the video game Mortal Kombat outsold the censored, family-friendly version by a significant margin.
  • Summary: When Mortal Kombat was released, Nintendo censored its version by changing blood to ‘sweat’ and altering finishing moves to align with its family-friendly brand. Sega, which released the uncensored, gory version, saw its version outsell the Nintendo version by several factors. This accidental A/B test suggested a strong consumer preference for the more violent content.
Pandemic Surge in Contagion Viewing
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(00:10:41)
  • Key Takeaway: Search interest for the 2011 pandemic film Contagion peaked in March 2020, indicating a drive to consume cohesive narratives about novel threats during real-world crises.
  • Summary: The popularity index for the movie Contagion surged from an average of 6 in 2019 to 100 (peak) by March 2020 as the COVID-19 pandemic intensified. This consumption provided a neatly packaged, well-told story about the virus spread and social response when scientific understanding was still developing. Horror movies also saw a surge in popularity during this period.
Morbid Curiosity Defined and Explained
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(00:21:24)
  • Key Takeaway: Morbid curiosity is defined as an interest in threats, not as a pathological trait, serving an evolutionary function similar to predator inspection in prey animals.
  • Summary: The term ‘morbid curiosity’ refers to curiosity about things that are bad or threatening, not that the curiosity itself is bad. This tendency is conserved across mammals, as shown by Darwin’s monkey experiment where subjects repeatedly peeked at a snake in a bag. Humans satisfy this curiosity safely through stories, allowing them to forecast and prepare for potential dangers.
Psychological Resilience from Horror Content
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(00:28:26)
  • Key Takeaway: Engaging with horror content appears to increase psychological resilience, helping individuals manage generalized anxiety by providing a controllable threat to focus on.
  • Summary: During the early COVID-19 pandemic, horror fans reported experiencing less psychological distress, anxiety, and insomnia compared to non-fans, even when controlling for personality traits. Horror functions by giving the mind a concrete threat to latch onto, dislodging rumination cycles, and allowing the nervous system to calm down once the fictional threat resolves.
Social Bonding Through Shared Fear
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(00:34:42)
  • Key Takeaway: Experiencing simulated fear in social settings, like haunted attractions, allows individuals to learn about themselves and assess the cooperative potential of partners.
  • Summary: Haunted attractions often open around Valentine’s Day, suggesting a link between fear experiences and bonding with loved ones. Observing how a partner reacts in a simulated fearful situation—such as whether they act protectively or abandon you—provides clues about their reliability as a cooperative partner in real threats. This is related to the ‘snuggle theory’ where fear facilitates physical closeness.
Empathy Levels of Horror Fans
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(00:38:55)
  • Key Takeaway: Empirical studies show no correlation between enjoying horror and lacking empathy; in fact, enjoying horror often requires high levels of cognitive empathy to engage with the protagonist’s experience.
  • Summary: When participants judged profiles based on favorite genre, they incorrectly assumed horror fans lacked kindness and empathy. However, research found horror fans scored similarly to others in empathy, with some even scoring higher in cognitive empathy (perspective-taking). Enjoying horror requires empathizing with the victim’s fear, as demonstrated by the success of ‘pleader’ characters in haunted houses who elicit help from visitors.