Alison cuts her finger and sucks it. Robin adds "he likes you blind. It's the only way you can hold him." Alison grapples with Robin, who then flees. Eric comes in and offers to take Alison away, but Alison says she won't run away. Robin has taken a horse and is trying to leave, but the household surrounds her. The horse clips Alison, who falls, but from the grass, she tells a concerned Eric that she is alright. The horse then runs into bushes and Robin falls off. She appears unconscious, and Eric carries her into the house. Eric lays Robin on a bed, and Robin comes round. He has his hands on her shoulders and her neck. She starts to cry. Alison comes into the house downstairs, rubbing her eyes. She hears crying like she heard years ago. She sees her memory: her sister and Eric in bed and Eric telling her to go to America while Robin begs not to be sent away. Their upper bodies are clearly naked. In the present, Alison is still wearing her dark glasses but can see her hands. She goes to the door of the bedroom and sees a blurred shape of Eric, who sat on the bed above her sister. The mother comes upstairs and tells Alison to lie down, but Alison says "leave me alone". In the bedroom, Eric embraces Robin's body, and Robin kisses the palm of his hand. Then she comes to her senses and pushes him away saying she won't be second best. She suggests he leave Alison and the children but clearly doubts that he will. Alison overhears and goes to her own bedroom. Eric is furious with Robin's challenge to him and starts to strangle her. He releases her, and she laughs at him and then turns away and cries as he runs out of the room. Alison can see her children in the garden and is crying. After a possible attempt to seduce Eric that evening, she gets into bed sadly. The next day, she is arranging phenobarbitone tablets on the table to form a letter 'A'. The others play tennis outside. A taxi arrives to take the children to see their cousins. Alison says goodbye. Her mother suspects something, and won't let Alison return upstairs, saying lunch is nearly ready. She reads a sci-fi book out loud while Alison knits. Eventually, Alison says she's had enough and goes to her room. Everyone meets for lunch, including Alison, but Robin is late. She arrives with a bunch of roses which she places on Alison's lap, then says "happy anniversary."