We despised My Sweetness (1965)

To preserve his mother and sister, Michalis works at the port of Piraeus. His sister falls in love with a poor young man, but she is engaged to another man. When the girl loses her light in an accident, her fiancée will disappear, and only the young man who really loves her will stay with her. The latter will sell the coffee shop that is given to him by a friend and he will be able to cure it in America.