Fatale is about Sharon Greaves, a chemist working in her husband's cider distillery, who creates an alcopop. Because the essential ingredient in the formula is wormwood, as used in absinthe - the French drink associated with the 1890's - she names her creation Fatale. Within a short time it becomes a success. Concerned with the addictive properties of wormwood, Sharon continues to monitor it's effects on laboratory rats. She discovers a flaw that she believes has been the cause of three fatal accidents. The parent company refuses to withdraw Fatale so she contacts the family of one of the victims and they decide to sue. Sharon agrees to be the major witness. Alan Swift, a Special Boats Service (SBS) veteran, mercenary and now hitman, employed to kill Sharon, makes the fatal mistake of falling in love with her. As does Gayle Meredith, an expert in placing people in special protection programmes. Sharon Greaves becomes the embodiment of the femme fatale, bringing grief to all who would love her.