The Crawleys throw a house party on Downton Abbey Season 4 Episode 2, but there wasn't a greal deal of merriment when all is said and done.
Frankly, by the time the episode ended, it was difficult to think of much other than Anna.
I didn't catch exactly why there was a party, nor how the guest list was put together. It was rather surprising that Lady Edith was allowed to invite her married cohort, Mr. Gregson. As they keep reminding viewers (literally, they say it -- a lot), things have changed since the war.