American chorus-girl Mamie Wallace (Farrell) travels to Paris with a ramshackle touring musical revue. The company runs out of money, and it looks as though Mamie and her dancing colleagues are going to be stranded in Europe with no way home. Luckily, she meets a handsome, well-spoken Englishman...
The German adopted-daughter of a Belgian innkeeper is threatened with internment by him if she reveals to the British billetees that he is a spy. However, she is in love with one of them and helps them.
“Professor Calthrop, actuated only by scientific motives, and his assistant, out for his own gain, have invented a system for the manufacture of diamonds.” - BFI.
