At least I think it's a film, there is is tiny chance it could be a tv show and an even tinier chance it might be a play.
It's an older film - easily pre-1990 probably more likely 60s/70s but very unsure. Definitely not recent (not 2000s).The only thing I can remember is that the ending was a few people (not many,maybe 2 - 4 people) in a very white brightly lit room, a type of waiting room but very formal with more formal straight backed chairs. The implication at the end was that they were all dead and this was some sort of afterlife.
In my mind, it had a very similar feeling to the hotel room scene at end of 2001 Space Odyessy but it is definitely not that film I am thinking of. The feeling was slightly creepy, not sure what's going on. This scene had a similar 'bright white' feel to it as the space ship scenes do in that film.
I've asked AI and it's suggested the Cube or 2001 Space Odyessy but it's not those. Has anyone got any ideas what I am thinking of?