1936: Europe has been at peace for 75 years, but right in the middle of it, a new city is growing, unlike any other in the world… Metropolis, capital of excess and urban delirium! It is also a focal point for all political movements and artistic trends, as well as a nerve center for various forms of espionage and other underhand activities. The horrible crimes taking place in the poorest parts of the city are one everyone's lips. To solve them, the police have called upon an Austrian doctor, the inventor of a little-known science involving the treatment of the mind: a certain Doctor Freud.