Uploaded January 2016 | Updated September 2026, 2 weeks ago

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When you're face to face with a killer every flicker, every pulse, every twitch could be the key to getting them to reveal everything.

This February, Investigation Discovery gives viewers a glimpse behind the scenes of America's interrogation rooms to see how the most strong-willed detectives are able to get cold-blooded killers to confess their deepest, darkest crimes.