Life for Linda Caine should hold no fears. As a contented wife and mother, she should have everything to live for. Yet a blackness has started to leak into her thoughts. Images flash through her head leaving her stunned and breathless. On the face of it there is no rational explanation for the way she feels. Linda believes there is something malign inside her. But in the back of her mind a voice tells her over and over again that everything will be OK. When it finally gets too much, she can always simply die. 'How shall I die if that time comes? I need to know these things.