Nancy Drew and the Hidden Staircase 1939

Synopsis:

Nancy helps two aging spinsters fulfill the byzantine provisions of their father's will, but the murder of their chauffeur complicates matters.

Directed by: William Clemens
Written by: Kenneth Gamet
Runtime: 60 minutes
Tagline: THERE’S BEEN A MURDER IN THIS HOUSE! (AND IT’S HAUNTED TOO!)
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Cast:
Bonita Granville
Bonita Granville
Nancy Drew 
Frankie Thomas
Frankie Thomas
Ted Nickerson 
John Litel
John Litel
Carson Drew 
Frank Orth
Frank Orth
Captain Tweedy 
Renie Riano
Renie Riano
Effie Schneider 
Vera Lewis
Vera Lewis
Miss Rosemary Turnbull