It is the morning after wealthy Silas Kane's sixtieth birthday party - a celebration that brings to light a number of familial controversies. When Kane is found dead at the foot of a cliff, the assumption is that he simply lost his way in the fog and fell by accident. But the subsequent death of his nephew and heir and threats on the life of the third Kane, the newest heir, raises obvious suspicion, and the redoubtable investigative skills of Superintendent Hannasyde prove critical once again.