When Sarah marries television star Niall Rhodes, to whom she is drawn like a moth to a flame, she has no reason to believe that the rich, full life she had led in her family's home at Guinever, a lovely old castle on the English coast, will not continue. But almost from the start, she and her family, including her wild, crippled half-sister, Dido, her domineering father, Lester, and her beautiful folk-singing sister, Nina, become involved in the ominous secrets behind Niall's public image, an image to which he seems intent on sacrificing everything—including Sarah. Strange clues—an indecipherable note, a headless doll, a mysterious woman in long green gloves, and the Minerva Stone itself—all point to the secret horror of Niall's past life. Bewildered, her life in the balance, Sarah begins a desperate struggle to find the truth of her husband's past and to free herself from his strange hold.