I also believe this may be the Columbo episode in which most of the scenes occur in one location,which is the Van Wyck house[/quote]Yes, good observation.

Both the inside and outside of the mansion are used for most scenes.

There are two scenes at the Art Gallery, and one at Barney's Chili restaurant.

Oskar Werner's accent sounds very German, which fits the character. He is easy to understand and I like the accent. However, I'd take Marcie and her Australian accent any time. I'd even pretend to love modern art and kitschy 70's technology. I think Harold Van Wick had his eyes on her.

Oskar Werner is fantastic in the movie "The Spy Who Came In From The Cold". The book is much better (John Le Carre), but the movie's not bad and Werner as an East German officer does a great job.

Oskar Werner's accent sounds very German, which fits the character. He is easy to understand and I like the accent. However, I'd take Marcie and her Australian accent any time. I'd even pretend to love modern art and kitschy 70's technology. I think Harold Van Wick had his eyes on her.

Oskar Werner is fantastic in the movie "The Spy Who Came In From The Cold". The book is much better (John Le Carre), but the movie's not bad and Werner as an East German officer does a great job.[/quote]Yes indeed, Marcie is unfairly overlooked in lists I've seen of Hottest Women on Columbo, e.g https://www.imdb.com/list/ls565431659/.

Mmmmm most of us would take Marcie....any time. I think she’s my 2nd favorite female on the show, 2nd only to Gretchen Corbett - Exercise in Fatality.