Un cadavre au dessert

The world's greatest detectives have been invited to dinner. But when murder is on the menu, who will make it to dessert?
The isolated mansion of eccentric millionaire Lionel Twain (Truman Capote) is the setting for the twisted puzzler. Twain informs his guests that one of them will be murdered at the stroke of midnight. The pay-off: $1 million to whoever lives through the night. (official distributor synopsis)