Indiscretion of an American Wife ICLS-1001 ( 0185 )

Mary Forbes, an American housewife, has fallen in love with an Italian–American man named Giovanni Doria while visiting her sister in Rome. She arrives at his apartment door but decides not to ring the door bell. Mary hitches a ride to the train station, where she schedules a ride from Milan to Paris and telephones her young nephew Paul to arrive with her luggage. Mary next writes a telegram to Giovanni, expressing her love and pleads for his forgiveness. Mary boards a train compartment but before the train leaves the station, Mary sees Giovanni. He had learned about Mary's departure from her sister after not hearing from her. Their conversation is interrupted by Paul, who has arrived with Mary's luggage. As the train rides away, Mary decides to stay with Giovanni.

Inside the terminal, they converse inside a restaurant where Giovanni reminds Mary she had told him yesterday that she loved him. Mary however felt conflicted as she is married to her husband Howard and has a young daughter, Catherine. Regardless, Giovanni has accepted a professor job at the University of Pisa and fancies living with Mary and Catherine along the Marina di Pisa. Giovanni invites Mary to his apartment, and as they leave the terminal, she sees Paul. Because of her unexpected reunion with her nephew, Mary expresses doubt about continuing their affair. Angered by Mary's indecision, Giovanni slaps her and leaves the station.

Paul and Mary wait for the next train to Paris, and inside the third class, they are seated next to an Italian woman who has gone into labor. Mary helps the woman to a doctor and has Paul watch her three children for her. Meanwhile, Giovanni returns to the station to search for Mary. Before long, Mary instructs Paul to return home, with a promise to have him visit her for Christmas. As Paul leaves the station, Giovanni sees him and asks him where Mary is. Paul refuses to answer Giovanni, who then runs back to the train station. He locates Mary and runs across the tracks, narrowly avoiding being hit by an incoming train.

Mary and Giovanni arrive at a train compartment where they embrace each other. Moments later, they are arrested by the police for public lovemaking and escorted to a nearby police station. As they wait for the police commissioner, Giovanni confronts an officer since Mary will miss her train. An overhead announcer also calls for Mary to reclaim her luggage. When the commissioner arrives, he states their actions require a trial but instead he drops the charges since Mary is a married woman with a child. Giovanni escorts Mary to the station where she reclaims her luggage. Before the train leaves, they bid their final farewells. As Mary's train leaves, Giovanni exits the terminal.