Forty videos to watch of shows and songs you’d forgotten ever existed.

They are sadistic and manipulative, often targeting children through digital platforms. Now, as part of an ABC investigation, a teen tells how an online cult incited her into ritualistic acts.

Experimental theatre group In Bed With My Brother’s story of cult band the Shaggs is a furious and funny rallying cry against patriarchy and perfection

Forensic psychiatrist Dr Gwen Adshead asks if violence is normal.