Half a dozen relatives and friends are celebrating Christmas with Neville and Belinda. Petty, and not so petty, squabbles break out. Christmas presents are rifled, mechanical toys are set off. Hilarious highlights include a chaotically incompetent puppet show and a midnight love scene that goes wrong. A final climax leads to what momentarily appears to be a tragedy as Clive, mistaken for a looter, is shot by the trigger-happy Harvey.