87 The Mysterious Doctor ( 1943 )

This  is  a  decent  little  wartime  thriller . It  does  qualify  as  a  horror  pic  despite  having  a  Scooby Doo-ish  non-supernatural  ending. It  was  made  in  Hollywood  but  is  set  in  Cornwall  and  has  a  convincingly  British  feel.

Lester  Matthews  plays  the  titular  doctor  who  comes  to  a  village  inn  at  night   supposedly  as  part  of  a  walking  holiday  but  really  to  investigate  a  tin  mine  which  isn't  running  because  a  headless  ghost  lurks  there. When  he  is  killed  a  plucky  local  girl  and  young  army  officer  take  up  where he  left  off.

It  does  suffer  a  bit  from  Talking  Killer  Syndrome  but  otherwise  it's  good  stuff

Eleanor  Parker  ( as  Letty  Carstairs ) 

Sex : No  but  she  wears  a  thin  nightie

Death : Survives

Eleanor,  from  Ohio, was  at  the  beginning of  an  illustrious  career  which  didn't  include  much horror  but  did  garner  three  Oscar  nominations  at  different times. Her  last  major  role  was  The Baroness  in  The  Sound  Of  Music  , after  which  she  went  into  television. She  died  in  2013  aged  91.

Phyllis  Barry  ( as  Ruby )

Sex : No

Death : Survives

Phyllis  actually  was  British, originally  Gertrude  Hillyard  from  Leeds. She  became  a  dancer  in  Australia  and  came  to  Hollywood  in  the  1930s. She  got   a  co-starring role  opposite  Ronald  Colman  in  Cynara  ( 1932 )  but  after  that  flopped  she  was  quickly  relegated  to  supporting  roles. Her  last  role  came  in  1947  and  seven  years  later  she  committed  suicide  with  an  overdose  of  barbiturates aged  45/