The Quack and His Fast Daughters (1980)

The Quack and His Fast Daughters
Comedy
Arriving in an alpine village a crook is mistaken for a recently deceased doctor and decides to impersonate him. Three girls stranded in the same village are sheltered by the "doctor" and naked German hilarity inevitably ensues.
Starring
Peter Steiner, Fred Stillkrauth, Ursula Buchfellner, Alena Penz, Sibylle Rauch, Toni Netzle, Rosl Mayr, Wilfried Schmidt, Josef Moosholzer, Hansi Zacher
Directed By
Franz Marischka