In this "sequel" of sorts to the Act of Killing that focuses on the struggle of a man to know the responsabilities behind his brother's death, with stronger ties with Annah Arend't Banality of Evil than its predecessor in a sense that dehumanizing acts were done in 1965 without no one taking responsability for them and a hopeful idea behind the protagonist's will to still see humans and not complete and total inhuman beasts in the atrocious killers he interviews. A must watch after its main companion.