Drugs Map of Britain: Season 1, Episode 9

1 - 9: Fentanyl Deadlier than Heroin

Fentanyl is on the rise in the UK: it's 50 times stronger than heroin and is the drug linked to the death of rock star Prince - but what is the reality of those addicted? In this episode of Drugs Map Of Britain, BBC Three explores the effect this drug has in Hull.