Condemned Even by Her Own Child (1955)

When cryptic Anna's only son, Petros, who's been studying abroad, returns to Athens, he announces to her his intention to marry his beloved, Katie: the daughter of Pavlos, his former high school principal. However, much to everyone's surprise, the first meeting between the future in-laws triggers painful memories from a well-hidden past that, if they come to light, they can only bring misery. Is all hope lost?