Few likeable characters in this movie
I found few characters in this movie likeable. The duplicitous heartless mother, the greedy lazy offspring, the grasping social-climbing nurse, the unfaithful solicitor (although he did come good at the end), the amoral politician (now there's an oxymoron) etc.
Possibly the German maid (Morse) and the solicitor's wife (Nevin) were the only ones with any decency.
Overall, a very bleak movie. I suppose that this is consistent with author Patrick White's reputation as an embittered curmudgeon.