Back Street (1961)

In Lincoln, the ambitious aspirant-designer Rae Smith has an incident with a wolf department store businessman and is rescued by the Marine Paul Saxon. They immediately fall in love with each other and spend the night together. On the next morning, Paul needs to return to Chicago and calls Rae to go with him. However she misses the plane and Paul travels alone. Soon she learns that he is married with children and she is convinced by her sister to move to New York where she succeeds in the fashion world. Paul, who owns a department store chain, stumbles upon her on the street and their love is rekindled. However, Rae decides to leave New York and her boss and partner convinces her to open a store in Rome. Some time later, they meet each other again and Rae learn that Paul is indeed unhappily married with the alcoholic Liz Saxon. They have a love affair and Paul buys a country house at the countryside of France where they spend their leisure time together. But their lives shatter when Paul's son discovers their love affair.