Serena

This is a very good and suspenseful murder mystery, with a neat twist at the end. The film was well acted, had good production values, and Honor Blackman, as always, looked lovely.

Not usually being so observant, I too noticed the "goof" that has already been reported on IMDB. Peter Glaze was usually a very funny comedian. I thought the fact that he called Patrick Holt a "superintendent", after presentation of the detectives warrant card, was for comic relief - or deliberate to see if cinema audiences were paying attention.

Apart from Patrick Holt, the only one in the film who seemed to get his rank correct was the policewoman who intervened when the himself and his sergeant nearly arrested the wrong woman. She was played by Pat Shaw in what seems to have been a very rare film appearance.

Throughout the rest of the film, Detective Gregory had been introducing himself as a Chief Inspector.