導演：彼德·哈蒙德
主演：傑瑞米·佈雷特 愛德華·哈德威克 Robin Hunter 羅莎莉·威廉姆斯 詹妮·西格芙
關鍵詞：四簽名 his 簽名 10 post pearl valuable
Miss Mary Morstan contacts Sherlock Holmes for his help regarding her father, captain Morstan, who disappeared 10 years ago. Since his disappearance she annually receives a valuable pearl by post from an unknown person. The mystery leads Holmes and doctor Watson into an intricate plot regarding a 詳情
