In the late 19th century, two Swedish emigrants, Lasse Karlsson and his son Pelle, arrive on the Danish island of Bornholm hoping to find work on a farm and save enough money to travel to the United States of America.

Three girls (around 20 years old) who have grown up in different parts of Denmark get a strange letter. It turns out they are sisters, and will inherit from their late mother, if the can stay together one month in the same house. They end up in a lot of (romantic) trouble, because of speculations of who their father(s) might be.