John Carter just had one of those days. First he had an argument with a mysterious Frenchman. Then Alice wants him to pick her up at the park after she has a fight with Robert over him. So Carter takes the roadster just as Marie and Joe were getting ready to leave. But Kendall, the butler, follows the roadster as he thinks it is Joe and his girl Marie. So when Carter picks up Alice and goes out in the country to park - he is shot dead. But the next day, he is found dead in the library at home. The investigation may be run by Inspector Piper, but most of the snooping is done by Hildegarde. The Sultan's Emerald, and a picture of the Cellini Cup, may be the clue leading to Carter's killer.

This is an English language film (made in America) adapted from a novel by German author Erich Maria Remarque. The film follows a group of German schoolboys, talked into enlisting at the beginning of World War 1 by their jingoistic teacher. The story is told entirely through the experiences of the young German recruits and highlights the tragedy of war through the eyes of individuals. As the boys witness death and mutilation all around them, any preconceptions about "the enemy" and the "rights and wrongs" of the conflict disappear, leaving them angry and bewildered. This is highlighted in the scene where Paul mortally wounds a French soldier and then weeps bitterly as he fights to save his life while trapped in a shell crater with the body. The film is not about heroism but about drudgery and futility and the gulf between the concept of war and the actuality.