The Remains of the Day by Kazuo Ishiguro, my #46 ranked book is actually the second from Ishiguro on my list and the lower ranked of the two. It's still a hell of a book. It is told in narrative form by Stevens, a butler for Lord Darlington. The flashbacks are to the 1920s and 1930s and Darlington is revealed to be a Nazi sympathizer. Stevens devotes his entire life "in service" and although it becomes clear he is in love with the housekeeper. Given his complete dedication to his craft, he didn't act on it.
ilov80s is right in that there is a lot of repressed emotion in the book, but that's pretty consistent with the English, right? Throw in stuffy butler and it increases accordingly.
The Remains of the Day won the Booker Prize (now Man Booker) in 1989 and Ishiguro won the Nobel prize for literature in 2017.
If you haven't read Ishiguro, this should be the second book of his you read.