A saloon owner falls in love with the abused wife of a heavy gambler. He is snared into a web of intrigue when an ex-girlfriend is found murdered in his apartment.
While perusing the books of an engineering company, fastidious auditor Frank Manning encounters rum goings on when he is approached by a woman who claiming she is being blackmailed. She begs him to find certain letters and he eventually agrees. Having obtained the letters, he takes them to a specified address where, to his horror, he finds a man, fully clothed, dead in the bath.
This tale of intrigue finds Valentina Cortese involved in an assassination plot. She helps the police apprehend the conspirators after an innocent bystander is accidentally killed.
When his mother eloped with an Italian opera singer, Louis Mazzini was cut off from her aristocratic family. After the family refuses to let her be buried in the family mausoleum, Louis avenges his mother's death by attempting to murder every family member who stands between himself and the family fortune. But when he finds himself torn between his longtime love and the widow of one of his victims, his plans go awry.
Hitler's doctor is gradually realising that the Nazi regime isn't as good as it pretends to be when his friends start to "disappear" into the camps. His wife is courted by the party and accepts a political post in Berlin. Meanwhile Dr Karl decides to try to do something to counteract the Nazi propaganda and with the help of an engineer and a few friends he sets up the Freedom Radio to counteract the Nazi propaganda.
This early, influential propaganda film blends documentary and studio footage to show the valiant efforts of the Royal Air Force to defend the British people against the Nazis.
