On a mild autumn afternoon in 1882, William Trenchard sits smoking his pipe in the garden of his comfortable family home. When the creak of the garden gate heralds the arrival of an unexpected stranger, he is puzzled but not alarmed. He cannot know the destruction this man will wreak on all he holds most dear.

The stranger announces himself as James Norton, but claims he is in reality Sir James Davenall, the man to whom Trenchard's wife Constance had been engaged, and who had committed suicide eleven years ago. Sir Hugo, James's younger brother, and his mother, Lady Catherine, refuse to recognise Norton and force Trenchard - who fears the loss of his wife's affections - into an uneasy alliance against him. But Trenchard must plumb the depths of his own despair before the dark secrets of the Davenall family can finally, shockingly, be revealed...