A love story between a taxi driver and a travel guide in the form of a musical.
Lazy but resourceful storyteller Lapatossu solves problems at the railway construction site with his seemingly simple friend Vinski.
The new idealistic welfare officer Helmi tries to improve conditions in "Sin Alley," but difficulties arise, particularly with the leader of the petty criminals, Jukka, whose son Reino also drifts into a life of crime.
