What is the title of this foreign movie?

I have been racking my brains trying to remember the name of an old movie. The movie is either Spanish or French and in the film, the man has an affair with a woman but then buries her in a wall thinking that she is dead and that he has accidentally killed her. She is actually unconscious and manages to break her way out. As an act of revenge, she turns up to where the guy works and explains the situation to his boss who promptly fires him. The film the ends with him looking out of the window of his office to see her drinking a coffee outside of a cafe. What is the name of the film???