We can all agree that there are some pretty terrible people in the world; but they’re rarely the people you see being publicly eviscerated on Twitter. Those who face the onslaught of social media are rarely murderers, child abusers, dictators or other bona fide nasty types. They’re far more likely to be celebrities, or even ordinary people, who’ve made a stupid comment or worn a misguided piece of clothing and have consequently become Public Enemy No. 1 for the next day and a half. We’ve all seen these furies explode on Twitter and then die off within a week, when the next big thing turns up. But the impact of this public annihilation doesn’t disappear so easily. Jon Ronson sets out in search of those who’ve been publicly shamed, seeking to understand why it happened, what it felt like, and how – and if – one can recover from it.