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Where To Watch Someone You Thought You Knew

Someone You Thought You Knew comes from Investigation Discovery.

  • Ended
  • 2018 to 2019
  • 2 Seasons
  • 13 Episodes
  • 60 Min
  • Crime
13 HoursTo Watch It All

About Someone You Thought You Knew

In homicide cases, it's seldom strangers you need to worry about, it's those closest to you. Even when the killing appears to be random, there can be something more sinister lying beneath the surface: a calculated plot, set in motion by someone close; someone hiding in plain sight; or someone leading a double life. What if the killer could be someone you thought you knew?

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Every Episode Of Someone You Thought You Knew

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Season 16 Episodes

Season 27 Episodes

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