I need to find the name of an old film where a woman inher sixties writes a story and has it published. She goes to work for the publisher who is the same age, but I married to a younger woman. They have an affair. The wife finds out but thinks he is seeing a young woman at the office as she would ever suspect he is seeing the older woman. The older woman leaves and goes to live with her daughter. Eventually the publisher leaves his wife and finds her.