I remember watching this back in the early to mid 2000s, it was definitely in english and it was an episode from an anthology tv show. Definitely in colour and I remember the plot involved a couple (in their 50s or 60s) and they might have had a dog. Anyway it all takes place one night in their apartment and there’s a kind of apocalyptic event taking place; which they manage to survive in the end. I think the last scene was of them looking out their window at the destruction (might have been a flood or storm).
Good luck everyone,