Die Wirtin an der Lahn (1955)

Karoline Steinmeier and her husband Josef are a tight-fisted couple who run an inn on the River Lahn near the Rhineland. For years they have been collecting the pension of her grandfather who had long since died, from his employer a winemaker. When he wants to visit to celebrate the old man's hundred birthday, the couple urgently have to find a replacement grandfather in order to prevent the fraud being discovered.