Continuity mistake: When the female Police Constable is about to leave the house, her tie is loose. The camera angle then cuts to her just before she gets into the police car and her tie is nice and tight.
Continuity mistake: While Vera is seen preparing a pot of tea, there is a loaf of bread on the table. Towards the end of that scene, without her even approaching the table, it has turned slightly.
Other mistake: When the CID turn up at Vera's house, there is an overhead shot of their car parked right outside, sitting in the snow clad road. However there are no tire tracks in the snow, of the car making its approach.
Plot hole: The time line in this movie doesn't make sense. The abortion took place on November 17th and Vera was arrested within the week - and the arresting detective mentions it took place on "Friday" - so we are to assume the Friday just passed. Pamela Barnes apparently took ill very quickly from massive infection after the abortion and was hospitalized on Saturday. The family is getting together on a Sunday to celebrate Ethel's engagement. Vera goes to court on Monday to face her charges - November 20th. Yet the magistrate sets her trial date for 3 weeks to the day - December 18th, which would be 4 weeks from then. There seems to be a week missing somewhere. If there was a week before Pamela took ill, the events seems to imply otherwise.
