The Buttercup Chain
When two people are in love they're a couple. When four people are in love they're the Buttercup Chain.
9/24/1970
Imdb: tt0066875
Tmdb: 145421
Popularity: 1.227
Vote: 4.6/10 (7)

Born to twin sisters on the same day in London, France and Margaret are more like brother and sister than cousins. The close relationship between the cousins is suspended when Margaret is sent abroad for schooling. Now a young woman, Margaret returns to London and resumes her intimate connection with France.