As a dinner party for wealthy arostocrats is beginning, the hosts are suddenly faced with an inexplicable mass walkout as one by one their staff leave, each with their own reason. As the evening draws to a close, equally inexplicably, none of the guests find themselves able to leave. Breaking all their social taboos they all sleep on the floor in the dining room, beginning to become violent, lustful and degenerate as the days wear on. A crowd gathers outside, and equally none of the trapped partygoers' friends or relatives find themselves able to get in.
This is a great story; it plays out like a film-length version of one of the older style "Twilight Zone" episodes, and also has the lovely sting in the tail that goes with it. There are some surreal moments as well, including the random appearences of a bear and sheep inside the house and a disembodied floating hand.
There are clear stabs here by the director at what he sees as the aloofness of certain social groups considering themselves more civilised then others; the aristocracy, the masons, and the church.
Filmed in the 1960s in black and white and with subtitles to the Spanish dialogue, none of this detracts from a great story and an engrossing film.