The daughters of Cain is one of the later episodes of Morse, and for my money it's one of the best. So often the quality of a series tails of towards the end, not here, the reverse happens. Several changes from the book, all of which benefit the production. The filming and direction are slick, the story is brilliantly told, but it is the characterisations, and the incredible performances that are behind them. It's possibly the only episode of Morse I can think of where the crime is almost irrelevant, the story of the Brooks, Mrs Stevens, Kevin etc is just so interesting, that the crime almost seems secondary. Phyllis Logan has done some fantastic stuff over the years, her portrayal of Mrs Stevens I think is one of the best. The regulars are as always brilliant, but Tony Haygarth, Gabrielle Lloyd, Amanda Ryan are just excellent. The episode also benefits from the slight injection of humour, subtle one liners throughout, plenty of sarcasm. Seemingly a simple mystery, but the Daughters of Cain is wonderfully deep and complex, there is so much going on, hate, fury, revenge, manipulation. It's an overused sentiment, but it's true to say 'they don't make them like this anymore!'