1949 film by Arne Mattsson

Fabian Bom, auctionist in a small town, one day finds a baby boy in a small crib that is for sale at an auction. He places the boy at an orphanage but returns the next day since he realizes that he misses the boy. Since a single man is not permitted to adopt a baby he arranges a marriage with a young woman, who really is the baby's mother.