本片是一部英国剧情片，上映于1991-02-10，由安德鲁·派丁顿导演，由大卫·苏切/休·弗拉瑟/菲利普·杰克森主演。
剧情简介：Chief Inspector Japp, afraid that he will soon find himself unemployed, needs Poirot's assistance in solving a string of jewel robberies. Japp is under intense pressure to catch the thief but Poirot counsels patience. When the jewel thief strikes again, Poirot and Captain Hastings go to the home of Marcus Hardman, a jewelry collector from whom an emerald necklace was stolen. Poirot is apparently quite taken with the exiled Russian Countess Vera Rossakoff and to Japp's great consternation, days pass with no progress in the case. With the famous detective otherwise occupied, Hastings and Miss Lemon decide to investigate on their own. Poirot however knows well who the criminal is.
外文名：Poirot：The Double Clue
类型：剧情 / 爱情 / 悬疑 / 犯罪
地区：英国
导演：安德鲁·派丁顿
编剧：安东尼·霍洛维茨 / 阿加莎·克里斯蒂
演员：大卫·苏切 / 休·弗拉瑟 / 菲利普·杰克森 / 保琳·莫兰 / 基卡·马卡姆 / 戴维·鲍姆伯
