This is kind of a weird ask, but do you know of dramas that largely have the events transpire in ONE central location? Of course the characters can leave at times but the major events happen in one place or are centered around one place.
Examples of this are the building in Happiness, the apartments in A Murderous Affair in Horizon Tower, the school in White Christmas. On the last one — it applies because they’re “stuck” there, other school or workplace dramas are not really what I’m looking for unless there’s an element of being stuck.