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The Devil You Know: House of Horrors

A sister discovers that her beloved big brother is living a horrific double life. John Wayne Gacy sees the pillar of success with a booming contracting business, but beneath his façade is a serial killer who stalks teenaged-boys.


Source: Investigation Discovery


Episode Info


Episode number: 3x3
Airdate: Wednesday October 24th, 2012

Director: (Unknown)
Writer: (Unknown)


  • Currently 8/10
8/10 (1 Vote cast)
Warning: The Devil You Know season 3 episode 3 guide may contain spoilers
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