Heiße Löcher - Geile Stecher (1977)

While Larissa moves to a new house, she discovers hidden cameras everywhere in the flat. As she asks her previous tenant, she comes to know some nasty things about the daily routine of the all time horny callgirl, who made her hobby as her job... After she has been elucidated about the financial abilities, she decides to take the things with her own mouth...erm hands, and she wants to go the same way like her antecessor...