A new BBC documentary is getting a lot of attention for exposing a disturbing part of the “Incel” community, a subculture consisting mostly of men that began as a source of common ground and evolved into one that led some individuals to real-life violence.

The group uses the term “incel,” a portmanteau of “involuntary celibate,” to describe themselves mainly in online forums.

“They're expressing some kind of blame towards women for their own personal situations and often worse than that. They're expressing hatred of women and [their] desire for violence to be committed against women,” said Adam Jessel, the executive producer of the BBC documentary, called “The Secret Life of Incels.”

But the number of people at risk of carrying out violence against women or any kind of physical harassment while self-identifying as an incel is “very small,” Jessel said.

Read more: ABC News