Irène Imbert's life in 1926 is no more edifying than her wartime escapades with American pilots showered in dollars. Her cynicism gives Arsène a brilliant idea. Posing as a notary, he comes to tell the young woman that one of his former “war godchildren”, Henry Bradford, has made her his universal legatee. As a result, Irène finds herself at the head of a considerable inheritance. In the meantime, crooks and shady financiers are jostling for position at her door.