出演：亚历克·吉尼斯 琼·格林伍德 彼得·芬奇 西塞尔·帕克 伯纳德·李 希德·詹姆斯 热拉尔·乌里 欧内斯特·克拉克 奥布里·伍兹 John Salew 山姆·基德 John Horsley 杰克·麦克诺顿 休·登普斯特 Eugene Deckers
导演：罗伯特·哈默
情节： Father Brown tries to transport a historically important cross to Rome engaging in battles of wits and faith with a thief and pursuing policeman. The thief, named Flambeau (Finch), is a master of disguise and is elusive, as Father Brown pursues him and tries to convince him to abandon his criminal career. During the making of the film, Alec Guinness was mistaken by a small boy for an actual priest. This episode appears to have played a part in Guinness's later conversion to Roman Catholicism.