Miss Atalanta Ashford is sightseeing near Venice when a mysterious veiled lady approaches her with the urgent request to look into her daughter's mysterious death on the idyllic Greek island of Santorini. Whilst working as a companion for the eminent Bacardi family, the unfortunate girl took a plunge from the dramatic cliffs during a walk alone. But is all as it seems? Sailing to Santorini and going undercover as the new companion, Miss Ashford soon discovers that her client hasn't told her the full truth. Someone is watching her. Now she must unravel the mystery and prevent the breathtaking azure sea views from becoming the last she too will ever see...