I caught the middle part of a French film whilst in a hotel in Latvia. Subtitled in Latvian I've no idea of the characters names, but it was so like Delicatessen, that I thought all I'd need do was look up Jean-Pierre Jeunet and see what other films he'd done and I'd find it, but no!
So - in French, B&W (I think), very little dialogue -set in a big decaying house standing alone, the story revolved around a young man, craggy face, who seems to be the caretaker of the building. There is a woman housekeeper and the only inhabitant is an old blind man who seems to be very important, possibly a politician. He takes a swim every day in the buildings indoor swimming pool. The youn man runs a large machine in the basement which provides hot water and electricity to the building. Although bits of the ceiling are falling off, the boiler/engine is his pride and joy and in immaculate condition. At one point the girl steals something like a spark plug from the engine and the young man persues her across the land , finally swimming out to a boat to retrieve it. He rushes back and gets the engine going again, just in the nick of time before the blind man dives into an empty swimming pool. Very dark, strange, very Delicatessen (my favourite all time film apart from Amelie). Any suggestions?