Noel Coward's masterpiece.  The four members of the eccentric Bliss family have each, without the other three knowing it, invited a guest to spend the weekend at their country estate.  But the Blisses wouldn't be successful hosts to one visitor; confronted with four, they put their guests through their self-absorbed version of hospitality, utterly oblivious to the train wreck they've engineered.  An irresistibly heartless comedy.