Where was The Whisperer in Darkness filmed?
2011 film directed by Sean Branney
The Whisperer in Darkness (2011) was filmed in Mount Holyoke College and Pasadena City College, 2 places named in its Wikipedia article, in the United States. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.
Places per Wikipedia's article
The Wikipedia article names 2 places. Each links to the sentence that says so.

