Mind & Psychology - 73 free documentaries about addiction & recovery.
Start with Pissing Blood: The Ketamine Time Bomb (22 min, VICE), then The Most Expensive Rehab in the World (18 min, VICE). All 73 documentaries here are free to watch from their makers' official uploads. To read deeper, the top-rated book on addiction & recovery is In the Realm of Hungry Ghosts by Gabor Maté.