Oliver Bramwell, an insurance inspector, arrives at Lewis Manor where he is to investigate a fire that broke out there on Christmas Eve. He rings the bell and to his amazement he finds himself face to face with Sarah, the woman he once loved in Hong Kong and who, one day, disappeared from his life without apparent reason. Love resurfaces and when Tracey, the owner of the manor and Sarah's husband, dies in a second fire, the couple is reunited. Nevertheless, Oliver suspects Sarah of having tricked him and murdered Tracey with a view to attaining her ends. Fortunately his suspicions are allayed and he can marry Sarah. They are first very happy, until a blackmailer starts preying on them...