Ramba Zamba bei der Mafia! (1976)

Anthony M. Wilson is, for all appearances, an English gentleman. He has a string of tony restaurants in London plus a beautiful house decorated with all the trendy art he can get. There is another side of him he does not like to tell any of his friends, his Sicilian ancestry. When a mysterious letter arrives for him to meet a distant relative, little did he realize to what extent his life was going to change.