西塞尔·帕克

　　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.

　　基尼斯扮演的角色发明了一种永不变脏也永远穿不破的神奇布料，这简直是人类的福音——因此，纺织厂老板和工会领导决定，要在所有人都失业以前干掉基尼斯。被追杀的基尼斯狂奔过黑暗的街巷，但是对他来说躲起来并不容易，因为他的衣服在黑暗中闪闪发光。

　　正要赶往伦敦完婚的凯莉（Margaret Lockwood）因雪崩被困在山下的小旅馆里，偶遇摄影记者康德（Michael Redgrave），两个人因小事发生争执，第二天大家各自赶路，却登上了同一列火车。　　在车上凯莉与一名老妇人佛洛伊（Dame May Whitty）结伴，彼此照料。然而凯莉因头部被撞，恍惚中沉沉睡去，待她醒来，老妇人不见了。四处寻找佛洛伊，却不见她的踪影，凯莉只好报警。出乎意料的是同车厢的每个人都说没见过什么老妇人，陷入困惑的凯莉再次遇到康德。康德相信凯莉，也感到事有蹊跷，两人渐渐和好，一起展开了调查。