A Murder Is a Murder

In a vein similar to Bond movies, a British agent Philip Calvert is on a mission to determine the whereabouts of a ship that disappeared near the coast of Scotland.

Stephane (Victor Lanoux) is the mayor of a small village. He is also the manager of the tannery which provides the inhabitants with work. In a fit of anger, he kills his wife (Edith Scob). A judge (Jean Carmet) tries to prove his culpability, but it's not an easy task, because there is a political and social pressure.

Antoine Rethel, a police inspector, meets a young woman to whom he has just prevented a traffic accident.To thank him, she invites him to drink at her house.She commits suicide a few moments later in the bathroom with her service weapon.Antoine swears to himself that he won't say a word about this dirty story and returns home. The next day, driven by curiosity, he decides to return to the scene of the tragedy...surprise, the corpse is no longer there...Antoine is not at the end of his troubles...the next day, he returns to the house and discovers another corpse in the bathtub...little by little, he sinks into a crazy story full of murders...He must hurry to elucidate the murders before it's too late.

The outbreak of World War I places Scots officer Geoffrey Richter-Douglas in an uncomfortable position. Although his allegiance is to Britain, his mother was from an aristocratic Bavarian family, and he spent his summers in Germany as a child. When Geoffrey is approached by a German spy who offers him a chance to defect, he reports the incident to his superiors, but instead of arresting the spy they suggest that he accept her offer--and become an Allied agent. In Germany, among old friends, Geoffrey discovers that loyalty is more complicated than he expected, especially when he finds himself aboard the maiden voyage of a powerful new prototype Zeppelin, headed for Scotland on a secret mission that could decide the outcome of the war.

The most ultra-secret telephone number of all is that of the "Hot'Line' that links the heads of state of the United States and Moscow. A conniving double agent manages to steal the top secret phone number and then begins to implement chaos by phoning Washington and Moscow, telling the two powers that their respective spy chiefs are traitors. It's spy versus spy, agent versus double agent, counter spy against counter-counter spy in a rapidly increasing international crisis that finds its solution on the stage of Chinese theater in Barcelona, Spain as the spy leaders, the traitorous agent, a beautiful girl, three old ladies, a young man caught up in the chain of events and a troupe of acrobats collide head on in battle.