Arvinge okänd - Season 4

When the sailor Ville Karlsson passes away, his Swedish family does not want his nearly 2 million SEK inheritance. Instead, Kattis Ahlström and Niklas Källner try to find the rightful heirs, Ville’s unknown grandchildren in Ireland.

Two Italian brothers, Aldo and Dante Casnici, come to Sweden in 1948 to work. With them they bring memories of the war and fascism. Kattis Ahlström and Niklas Källner follow the trail of the brother’s different life choices and try to find the heir that will inherit 1.4 million. This episode also features a follow-up to the episode about the newspaper carrier's unkown life from 2018.

Catherina Strandquist was chocked to find out, at an adult age, that her biological father is an American fighter pilot. He does not leave her any inheritance, but she does find out that she has a half brother in Germany. When Kattis Ahlström and Niklas Källner take on the case, Catherina has already been searching for her brother for 20 years. This episode also features a follow-up to the episode about the sponsored child who disappeared from 2019.

Gerda Eriksson from Germany was a successful career woman but she never spoke of her past. When Kattis Ahlström and Niklas Källner search for heirs to her nearly 3 million inheritance, they are struck by a war story that is rarely spoken of. This episode also features a follow-up to the episode about the involuntary spy from 2017.

Was she homeless or was she rich? There are many rumours flying around about Uppsala’s baglady, Viviene Phillips. Kattis Ahlström and Niklas Källner unravel the story about a fascinating woman from Jamaica who hid more from the world around her than just the contents of her bags. This episode also features a follow-up to the episode about the boy who was left behind from 2018.