The brides are coming (1978)

Jelena, a woman of character, rules an inn in an isolated place in the countryside. She lives with her two sons: Martin and Jakov. Martin has been married to Kata for 5 years, but never succeeded in having a child. Jakov sleeps with his mother in postures suggesting incest, but he is in love with Kata. Each night he hears her cries, the sexual acts with her husband inevitably finish with violence. One day, Jakov can't stand anymore, he leaves, and Kata is found dead the next morning. Two characters arrive then : an old man, who turns to be the father of Martin ; he settles and declares being returned to die here. And a girl, that Martin will keep as his new wife.