Il Commissario Montalbano - Season 4

Salvo is called to the scene of a dead blind man and finds himself taking responsibility for his guide dog. Once the investigation determines that the man was murdered, a course of events lead Salvo to deceive 'Livia into taking a "working" vacation weekend to visit the man's sister and finding that they are in debt with the loan sharks. It is later determined that the murdered man left his substantial savings to his sister - but where did the money come from? (imdb.com, bek010)