The Heart Is a Lonely Hunter
Starring Sondra Locke, Alan Arkin, Laurinda Barrett, Stacy Keach, Chuck McCann, Biff McGuire, Percy Rodriguez, Cicely Tyson, Jackie Marlowe, Johnny Popwell
It's a drama and action & adventure movie, and has a rating of 7.6 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Switzerland.