Movie: The Decline (1961) – IMDb
“Rea has something going on with both Kostas and Petros. When she insults Kostas, he takes his revenge upon her; he seduces Rea, takes her clothes off and steps away, leaving her bare-breasted. Rea, naked on the road, is arrested for prostitution. Petros really loves her and tries to be near her, but she won’t leave her room, feeling shame. Then, one day,looking out of her window, she sees Kostas with her young sister. She takes her father’s gun and follows them to Kostas’ house. There she finds them ready to make love and she kills Kostas. Written by Anonymous”