Monday, October 26 - It Takes a Thief - A Sour Note

It Takes a Thief (1968–1970) - A Sour Note  (Episode  Season 2 | Episode 2 - aired 1 October 1968)

Al must travel to Italy, with an egotistical opera singer supplying his cover. The mission is to break into a theft-proof type safe that contains documents that may prove that a millionaire industrialist is a Nazi war criminal.