Popsugar Entertainment Hbo Best HBO Documentaries | 2020 25 Powerful Documentaries You Can Watch on HBO Right Now 7 April 2020 by Hedy Phillips View On One Page Photo 18 of 25 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 18 A Dangerous Son Get a closer look at what it's like to have a child who is emotionally disturbed with this documentary. Watch A Dangerous Son on HBO. Previous Next Start Slideshow HBODocumentaries