When the government of Indonesia was overthrown by the military in 1965, the gangsters Anwar Congo and Adi Zulkadry were promoted from selling black market movie theatre tickets to leading the most powerful death squad in North Sumatra. In The Act of Killing Anwar and his cohorts recount and gruesomely re-enact their experiences and some of their killings for the cameras, making horrific scenes depicting their memories and feelings about the killings. But as they begin to dramatise Anwar's own nightmares, the scenes begin to take over as artforms, leading to confrontations of memories of historical reality. Can the horrific imagination succumb to moral catastrophe in this case? And if sociopaths are not reachable people anymore, the question becomes what we must do to stop them.