Erricos Andreou – Lesviakos Avgoustos AKA Lesbian August (1974)
At a small and peaceful island, a painter with his wife and daughter (from his first marriage) arrive for vacation. The wife and the daughter seem to have a sexual relationship. However, the daughter wants to break free from this relationship and this leads her to have sex with a fisherman (who happens to be married). He falls in love with her but she tells him that she only wanted him for one night. When the painter learns about the two women, he molests his wife and she poisons him to death. The fisherman discovers who the murderer is and blackmails the two women. He dissapears. In the meanwhile the two women get busted by the police and that’s when the fisherman shows up again and solves the murder mystery.