Sarah, played by Fiona Dolman is pregnant. The air date was 24 December 2013, which means filming took place some time earlier, usually several months. In real life, Dolman gave birth to a daughter in August 2013, so the pregnancy was real.
The Barnabys live at 17 Greenfell Road in Causton.
This story claims to take place in the fictional Midsomer Shallows which has the title of the most haunted village. Pluckley in Kent UK apparently holds this title for real.
The Manor House is in Long Crendon in Buckinghamshire, also featured in The Garden of Death, Things That Go Bump In The Night and The Axeman Cometh.