Based on a short story by Somerset Maugham, Before The Party tells the story of a family attempting to return to normal in the wake of the Second World War. With daughter Laura returned from Africa, widowed but not alone, they prepare for the latest social gathering. Amidst the never-ending whirl of hats and dresses and below stairs skirmishes, Laura reveals a shocking secret that threatens to ruin more than one party on the climb to social success.