How far would you go to protect your sibling? Nigel Kingsley lives with his sister Martha. He loves her dearly but realises that she has been a crippling influence on his life. Hazel Saunders is Nigel's ex-lover. And she also happens to be a novelist. While Nigel may miss her, there is certainly no love lost between the two women in his life. Especially when Martha is horrified to realise that she has been used as the inspiration for a fictional character when she comes across an advance copy of Hazel's latest novel. The conflict between Martha and Hazel escalates when Martha attempts to stop the publication of the book. The Action tells the claustrophobic relationship of Nigel Kingsley and his sister, Martha, in a story which is often funny, always moving and, in the end, poignantly tragic.