Question Author
Neveracrossword, I don't think I saw those. I'll have a look. Thanks.
ag, I thought I'd guessed ... and then I thought I was wrong .... but then it transpired I was right in the first place. When the pathologist found two different knives had been used I thought the wife had turned up, found him still alive, and finished the job off. The scenes in the prison visiting area were quite well done I thought. Until the end I was never sure who was the prisoner and who the visitor.