The main character of Oliver Hermanus’ shattering “Moffie," set in 1981 South Africa, is a handsome, white 18-year-old. In the country's system of apartheid, he is a member of the ruling class, but he's no insider.Shy, timid and closeted, Nicholas van der Swart (Kai Luke Brummer) is conscripted into the army as part of regulated military service for white males over 16.