A View of Love (2010)

Original title: Un balcon sur la mer

Happily married with a daughter, Marc is a successful real estate agent in Aix-en-Provence. One day, he has an appointment with a woman to view a traditional country house. A few hours later, Marc finally puts a name to her face. It's Cathy, the girl he was in love with growing up in Oran, Algeria, in the last days of the French colonial regime. Marc hurries to her hotel. They spend the night together. Then she's gone again. And Marc's mother tells him Cathy never left Algeria. She was killed with her father in a bombing just before independence...