Grace Tynan’s life is terrifyingly planned: her career in property, the school car pool, her marriage to a man whose absent-mindedness means she has to organise everything. So when a college dropout called Adam knocks the side mirror off her BMW with his anti-nuclear placard, the last thing Grace expects is to fall in love.

Anxious friends soon notice an alarming change – Grace gives up work, she shuns dinner parties and, most disturbing of all, she stops shaving her underarm hair. Has the Grace they know and love turned into a Rainbow Warrior, or has she simply decided that her grey life needs a bit of colouring in?