When Brendan Watkins was a child, he was told he had been adopted through a catholic welfare agency in Melbourne in the 1960s.
As an adult, he eventually tracked down his biological mother, and was stunned to learn she was a Catholic nun, and wanted nothing to do with him.
It was another 30 years before a DNA test revealed the identity of his father; he was a Catholic priest.
For Brendan, it was the end of a decades-long search, which had been obstructed by the Catholic Church, bent on protecting the identity of his father.
Brendan Watkins speaks to Kathryn about finally telling his story in his memoir, Tell No One.