The Birds of Baden-Baden(1975)

It's summer and Madrid is almost deserted. Elisa, a young bourgeois woman who is preparing her doctoral thesis, needs the services of a photographer to illustrate her work. She hires Pablo, a somewhat bohemian, strange, and solitary man who lives with his son. Despite an initial misunderstanding, they are mutually attracted to each other; thus begins a relationship that for her is nothing more than a summer romance, while for him it could be a story of love and salvation.