Sunday bloody sunday (1971, John Schlesinger)

In London, employment consultant Alex Greville and Dr. Daniel Hirsh are each in a relationship with much younger industrial artist Bob Elkin. Alex and Daniel, who have mutual friends besides Bob, know about the other in Bob's life. Within each coupling, both partners profess to love the other. Conversely, Bob easily moves between Alex and Daniel, especially when he starts to feel penned in by one, or has an argument with one. Alex and Daniel, who give each other the space when with Bob, accept the situation if only to hold onto their small piece of Bob out of that love and a need to fill the void caused by other issues in their lives. Alex is at a crossroads professionally, she who is contemplating quitting her less than satisfying job, without a sense of what to do in its place. Although comfortable with his homosexual orientation when with his friends, Daniel, feeling generations of Jewish guilt, has not told his family, who still expect him someday to get married and have children, despite he being in middle age. Their respective family situations and a move by Bob may show them what the future lies for their love triangle.