Older married couple cheating with young lovers

The bourgeois intellectual spouses Carlo and Sylvia have been married for twenty years. But they tiredly live their relationship apart; while she lives in their original apartment in Rome, he lives with his young mistress Lou from time to time in his country house when he is writing a book. He does not hide his relationship from his wife and even admits that Sylvia may have lovers, among them a young and violent neo-fascist. But this relationship rekindles Carlo's jealousy, and he becomes obsessed with knowing everything about her affairs, and jealousy blinds him.