what does it mean?
inside a Denny's.

The context :

On the whole, it's not super surprising that a man who sets many of his novels inside a Denny's also likes The Red Hot Chili Peppers, but what does it mean for the future of Murakami's art? Probably nothing.

Question

what does it mean?
inside a Denny's.

The context :

On the whole, it's not super surprising that a man who sets many of his novels inside a Denny's also likes The Red Hot Chili Peppers, but what does it mean for the future of Murakami's art? Probably nothing.

Answer

It's a restaurant chain. These guys: http://www.dennys.com/

Answer

Denny's is a popular restaurant in America. It just means inside a restaurant :)