Same as the HK film?
The plot sounds a lot like the Hong Kong film with Louis Koo as the inspector. Is this the same but non-comedic and British?
shareThis is based on the 1945 play An Inspector Calls by the English dramatist J.B. Priestley.
https://en.wikipedia.org/wiki/An_Inspector_Calls
If there aren't any skeletons in a man's closet, there's probably a Bertha in his attic.