Please forgive me if I botch this. :)
The hunchback (Lorre), a drug dealer, has just kidnapped a young singer who is addicted to narcotics. I believe the plan is to blackmail her family for money. He compels her to make a recording of her voice that he can play over the phone to her family.
This was a German/French co-production. I apologize that I don't know French and am unable to translate this. I just find Peter speaking French to be a beautiful thing! The plot of this movie is about a drug pusher who gets a young singer hooked on drugs. Her brother tries to catch the bad guys and save his sister.