The film narrates the events of African nationalist and independence movements in the 1960s and 1970s which challenged colonial and white minority rule.
A middle-aged Indonesian man, whose brother was brutally murdered in the 1965 purge of "communists," confronts the men who carried out the killings. Out of concern for his safety, the man is not fully identified in the film and is credited only as "anonymous," as are many of the film's crew positions. Some shots consist of the man watching (what seems to be) extra footage from The Act of Killing, which includes video of the men who killed his brother. He visits some of the killers and their collaborators—including his uncle—under the pretense of an eye exam. Although none of the killers express any remorse, the daughter of one of them is clearly shaken when she hears, apparently for the first time, the details of the killings.