In Paris in the 1920s, a concert violinist meets and falls in love with a stylish young flapper who s the wife of an old friend. Romaine instigates the affair with Marcel, and carries it forward even as her husband, Pierre, falls ill. She may even be purposely giving Pierre a treatment that adds to his misery. After Marcel returns from a concert tour and Romaine stoops to a new low in abandoning Pierre for an assignation, she reconsiders the affair and takes a drastic step. Three years later, Pierre pays Marcel a visit to demand the truth. Will the jealous and aggrieved Marcel manage a convincing performance?