In 2018, a user called AnathematicAnarchist published a suicide note in an online forum for incels – a subculture of heterosexual men whose self-pity, misogyny and fantasies of violence dominate the internet in many places and trigger offline actions in some. Did he really take his own life? Is America responsible for his death, as he claims in his text? A search for clues in the darkest corners of the net, an essay about pain and loneliness in the age of algorithms.

• Documentary