Deep in the wild fen country, Rosamund Morley lived a cloistered, poverty-stricken existance with her sister Jennifer and her alcoholic father. She was the prop and stay of the family - and it was she who ran for help the night her father set his bed alight after a drinking bout. That night was to change the course of Rosamund's life - for, fleeing through the woods, she met Michael Bradshaw, the man she christened the 'Fen Tiger'.