Looking for a Scandinavian film Set in 1920-30, filmed in 1990ish, maybe earlier.
Plot: Young girl of rich parents, about 10-12 years old, fakes her own kidnapping. She hides herself in the city sewage system, where she meets a man who cleans the sewage. Mentally and intellectually she is more mature than this man, who gets bullied even by his own colleagues. She uses underground sewer system to withdraw the ransom money, instructing police to place it near the drain grill. After moneys are obtained she takes man to the best hotel and gets him dressed in the best suite. Finally, girl gets ill and man brings her back home.
- Girl ties a hanky over man's naked woman tattoo to cover its nudity.
- Man was made to hold a large bowl of water against the ceiling with the broom, so when his hands get tired it fall on him.