The film tells the story of a middle-aged Jewish doctor, Daniel Hirsh (Finch), and a divorced woman in her mid-30s, Alex Greville (Jackson), who are both involved in an open love triangle with sculptor Bob Elkin (Head), a younger man in his mid-20s. Daniel and Alex both aware that Bob is seeing the other, but they are willing to put up with the situation through fear of losing him. However, after an announcement makes them face an ultimatum, they both must come face to face and confront their opposed circumstances.
Schlesinger, Finch, Jackson, and screenwriter Penelope Gillaitt all received Academy Award nominations. Not to be confused with the song of the same name from U2's War, or the 1972 Bloody Sunday incident from The Troubles that inspired it.
This film features examples of:
- Breaking the Fourth Wall: Daniel at the end of the movie, when he tells the audience how much he misses Bob after he chooses to still go to the States.
- But Now I Must Go: Bob leaves both Daniel and Alex to go to America.
- Nice Jewish Boy: Daniels family sees him as one. Daniel himself - not so much.
- Polyamory: Daniel and Alex both agree to let Bob see the other, through fear of losing him.
- Triang Relations: This one is a Type 8- Bob loves both Alex and Daniel, who know each other and both love him back as well
- You're Drinking Breast Milk: When Bob is babysitting a houseful of kids with Alex, he finds a small, odd-looking container of milk in the refrigerator and asks the eldest daughter if it's all right for him to drink, and she respond that it's milk her mother had expressed for her infant brother, as "he isn't weened yet".