Suffering from complex PTSD and secondary trauma I could relate to the main character although in those days there was no name for suffering in silence and trying to put a kid on things with very little professional support. I thought was Sean's best acting part and well away from Bond as you could get ,that is why he insisted in making this film.. it was a budget box office flop in 1972 but it's only until recently people have watched and understood it a bit better than back in the 70s.