Watch Full Movies Quartet Online for FREE in HD 720p on 123Movies. Download Quartet 123movies new website. Temptation and danger run high in this romantic drama. In a post-World War I world, handsome veteran Antoine is ready to live life with his beautiful wife, Marianne. But his happiness is threatened when Marianne's alluring sister, Evelyn, pulls him into a seductive web of deceit and infidelity.