Advantages of Travelling by Train

An impressive man on a train meets a young woman named Helga Pato. He introduces himself as psychiatrist Angel Sanagustin and talks about the most terrible case from his practice - the story of a paranoid man. It is more reminiscent of the fanciful tales of the Arabian Nights, but it turns out to be only the beginning of a series of amazing incidents that plunge Helga into a whirlpool of madness, perversions and manias.