Dear Ruth (1947)

A normal day in the Wilkins family: reticent beauty Ruth, crusty judge father, petition-happy political activist teen Miriam. Who should show up but Ruth's soldier pen pal Bill Seacroft...whom she doesn't know about. It seems Miriam used her sister's name and picture to build up wartime morale. Ruth reluctantly agrees to "humor" Bill for his 2-day leave, though she's just become engaged to her stuffy suitor Albert. Can Miriam's cloud castle last the weekend without crashing to earth?