Film Noir Set in Los Angeles or San Francisco from 1940's or 1950's

[DrParker]

I am looking for the name of a movie set in Los Angeles or San Francisco from the 1940's or 1950's.  I don't remember the actors.  The premise is that a member of Scotland Yard comes to the U.S. to track a mad killer who escaped the U.K.  As it turns, out the member of Scotland Yard is actually the escaped killer.  I remember a person goes missing and they find the body in the closet or wall panel of an office.  Any help would be appreciated.  Thank you for the responses in advance.

[pennywise37]

how about either Counter Spy Meets Scotland Yard (1950) or David Harding Counter Spy (1950) the 2nd one i think is the first one but i had to look up the title on IMDB because i could not remember the name of it.

[M.10rda]

Do you recall any actors who appeared in this film?

[pennywise37]

https://www.imdb.com/title/tt0178372/?ref_=tt_mlt_t_1

https://www.imdb.com/title/tt0178348/?ref_=tt_mlt_i_1

i think the first one was David Harding

[M.10rda]

Thanks, Pennywise! I intended that question for Dr. Parker but I should've said that!

[DrParker]

Hi.  Thank you both for responding.  I don't think these movies are what I am looking for.  I started watching "Counterspy Meets Scotland Yard" and this wasn't what I remembered. The IMDB description to "Counterspy" does not match either.  These seem more WWII espionage movies, rather than "Film Noir".

To further elaborate, I remember watching the movie maybe, like 12 years ago on TCM.  I don't remember the actors.  It was definitely set in California, and definitely involved a British Detective (maybe London Police?) or a member of Scotland Yard looking for a British murderer who escaped to L.A. or San Francisco.  In the end, it turns out the British man is the criminal and killed the detective/Scotland Yard man and poses as him to get to California.   There was definitely a murder victim's body found in an office closet or wall panel in this movie.

Again, thank you both for responding.  Hopefully, one day, TCM will play it again.