How do you heal after a mass injustice? Two former enemies from apartheid-era South Africa square off in this week’s episode of Insight. In a tense and dramatic exchange, Shirley Gunn talks directly with the man responsible for framing her for a crime she didn’t commit. His actions led to Shirley spending a traumatic stint in jail. Insight also brings in examples from child sex abuse scandals, the stolen generation and forced adoptions, traversing continents and conflicts. Does an apology, compensation or public acknowledgement help them come to terms with what happened to them? Or does healing come from elsewhere? Is it even possible? "Healing" is a timely episode, with a royal commission underway into sexual abuse of children in institutions across Australia and a national parliamentary apology over forced adoptions set for March.