Out to help prove the innocence of her first reporting subject, Lady Beowulf Harwood, columnist Henrietta Tilney falls victim to a near-fatal assault by a ferocious beast. Recovering, she accompanies Harwood and his associate, Dr. Charles Plum, to the mansion where Harwood claims he was framed for murder. As they search, Miss Tilney spots someone watching them, but is the spy truly the greatest danger on the manor grounds?