主演：亞歷克·吉尼斯 瓊·格林伍德 彼得·芬奇 西塞爾·帕克 伯納德·李 希德·詹姆斯 熱拉爾·烏里 歐內斯特·克拉克 奧布里·伍茲 John Salew 山姆·基德 John Horsley 杰克·麥克諾頓 休·登普斯特 Eugene Deckers
導演：羅伯特·哈默
簡介：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.