A carriage transporting ten passengers fleeing from Rouen is stopped at a village inn by Prussian soldiers, who decide to detain them until one of their party, the prostitute Boule de Suif, consents to sleep with their officer. When Boule de Suif refuses to do so on account of her principles and patriotic sentiments, the solidarity initially manifested by her fellow travellers becomes increasingly tested as the deadlock continues, and the strained relationship between her and her "respectable"...