Seventeenth Heaven(1966)

Original title: Un garçon, une fille. Le 17ème ciel

François, a gentle dreamer and humble window cleaner, falls under the spell of a young woman he spots on the seventeenth floor of a block of flats. And when she sets off on holiday to the seaside, he follows her on his bike to declare his love for her. He claims to be a novelist; she claims to be a lady of the manor. A boy, a girl, two lies, an impossible love?