Marion Deacon is a wife and mother, and not particularly good at being either. It's the 1970s and in her small village the Swinging 60s, the wave of feminism, the prospect of an exciting life, have all swerved past her. Reading her teenage daughter's diary, it seems that Sarah is on the threshold of getting everything her mother Marion was denied, and Marion cannot bear it - what she does next has terrible and heart-breaking consequences for the whole family.