Shares in a plc that markets bottled water seems a natural choice for the Ethical Portfolio of the London investment company where young graduate, Anisha, is researcher for the 'green team'. That is until, in the course of her researches into the industry, she stumbles across a shadowy organisation, FARIS, which believes the human race has reached the limit of survival on planet earth and that it's time to cut its losses and head for the stars. Led on by her natural curiosity and a desire to see far-flung and little visited places she is faced by a series of revelations which stretch her credulity to breaking point. And falling headlong for a scientist from what she comes to see as the opposing camp adds an unanticipated emotional complication. As Anisha becomes more entangled with FARIS she is faced with the question: for life on earth, is the glass half full or half empty? What would be your answer?