The iridescent Mrs Theresa Marshall - a beautiful socialite of a certain age - has done the unthinkable: she's fallen in love with her young lover, a handsome aviator and hero of the Great War. But though times are changing, divorce for a woman of Theresa's wealth and social standing is out of the question. Dangerous revelations lead to a shocking transgression and eventually Theresa must make a choice that will change them all forever. New York in the Roaring Twenties.