Die Vlugteling (1960)

Believing he has killed a policeman,a young Ducktail* finds sanctuary on a farm, where he pretends to be the long-lost son of the blind farmer. The impostor blackmails the family into silence, knowing that their real son is in jail - and that if he reveals the truth, it will kill the farmer. *Ducktails: "a white youth gang subculture which emerged within post Second World War South Africa. Rebellious, hedonistic, apolitical and showing little respect for the law, education or work"