Bob y Jill Lawrence son un matrimonio que está de vacaciones en Suiza con su hija Betty. Allí entablan amistad con Louis Bernard, un francés que recibe un disparo en el corazón mientras baila con Jill. Justo antes de morir, Louis le pide a Bob que entregue a las autoridades unos documentos que tiene escondidos en su habitación. Bob descubre que Bernard era, en realidad, un espía británico que seguía los pasos de una misteriosa organización que planeaba asesinar a un político extranjero en Londres. A continuación Bob recibe la llamada de un desconocido que le exige que abandone el asunto o su hija sufrirá las consecuencias.
Old Jerusalem: Matathias, spiteful over his lover's illness, spits on Jesus along the road to Calvary, and is cursed to live endlessly until His return. The Crusades, 1150: Matathias, now an anonymous knight, competes for glory in combat and for the wife of a soldier. Palermo, 1290: Matteos Battadios witnesses the death of his young son, leading to conflict with his wife over whether to take comfort in Christianity. Seville, 1560: Dr Matteos Battadios dedicates himself to the treatment and comfort of the poor, but his life and work are endangered by the arrival of the Spanish Inquisition.
In London a young lady meets a homeless and apparently penniless Russian prince. She introduces him to her middle-class Fulham family and he moves in. It turns out he still has a number of diamonds given him by the last czar, and he is persuaded to start selling them. The resulting money, and his princely notoriety, soon cause changes in everyone's lives.
