Zee (Dame Elizabeth Taylor) and Robert Blakeley (Sir Michael Caine) are members of swinging London's upper crust whose unique love-hate marriage heads towards destruction when Robert falls in love with a beautiful young widow named Stella (Susannah York), and Zee goes through a series of scheming adventures to break Robert and Stella up.
The venomous and amoral wife of a wealthy architect tries, any way she can, to break up the blossoming romance between her husband and his new mistress; a good-natured young widow who holds a dark past.