Protected witness Willa St. Clair finds herself on her own and hiding out on Florida's Cape Diablo Island after an attempt on her life. Willa had fingered undercover cop Landry Jones for the murder of his partner, but Landry's determined to prove she's wrong. He tracks her down to the island, which has a violent history, to find a computer disk that has Undeniable Proof (3) of his innocence. Though B.J. Daniels' story has the eerie backdrop of a fine thriller, her characterizations fall a little flat and seem unrealistic in this disappointing installment of the Cape Diablo series.