Hi - I just saw this last night - thought it was great, but I was so caught up in it I may have missed the answer to my question(if they revealed it) - but did they ever explain more about the "annonymous letter" Trevor Howard's character (Dr Barnes) got earlier on? (about the previous death hospital death)- or was that just a random red herring? - and what about why Higgins was all weary about Dr Barnes "you're got a nerve" - was that because he read the annonymous message when he delivered it? or something else I missed? Thanks so much.
Do you have monkeys in Scotland? ~No, but if we did we'd probably deep fry them!
It was something of a red herring, but it plays to Dr. Barnes' motive. The assumption is that Higgins either wrote the letter or was aware of its contents. As Dr. White brings it up as reference to the previous death, one may assume it is a letter accusing Dr. Barnes of malpractice, so to speak.
When Higgins has his "nerve" moment w/ Dr. Barnes, Barnes must know that Higgins shares the opinion that he (Barnes) killed that patient 4 years earlier. This is why (as revealed by Inspector Cockrill as they walked into the operating theatre) that Barnes delivered the anesthesia in the theatre - he wanted witnesses. He was worried (correctly or not) that if something went wrong with the Higgins surgery that he would be blamed for it, so he wanted other doctors around to either a) share the blame or b) be able to vouch for him.
I should mention that this is all supposition on my part based on the events.
1. Being moody. 2. Being bad at maths. 3. Being sad.