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What makes ordinary people commit extreme acts of violence? Michael Portillo investigates the dark side of human nature, and discovers what it is like to inflict pain.

Other episodes for this season

Why Are Thin People Not Fat?
Episode 1 - Why Are Thin People Not F...
Cannabis: The Evil Weed?
Episode 2 - Cannabis: The Evil Weed?
Why Do We Dream?
Episode 3 - Why Do We Dream?
Can We Make a Star on Earth?
Episode 4 - Can We Make a Star on Ear...
The Secret Life of Your Bodyclock
Episode 5 - The Secret Life of Your B...
What's the Problem with Nudity?
Episode 6 - What's the Problem with N...
How to Survive a Disaster
Episode 7 - How to Survive a Disaster
Who Do You Want Your Child to Be?
Episode 8 - Who Do You Want Your Chil...
Why Can't We Predict Earthquakes?
Episode 9 - Why Can't We Predict Eart...
Alan and Marcus Go Forth and Multiply
Episode 10 - Alan and Marcus Go Forth...
How Violent Are You?
Episode 11 - How Violent Are You?