From MHz Choice:

Kristofer Hivju (Game of Thrones, Beck) stars in this dual-identity thriller. After the accidental death of his upstanding twin, a ne’er-do-well surfer bum assumes his brother’s identity.

From MHz Choice you can stream the 8 hour-long episodes of this Norwegian drama.  English subtitles are provided.

Hivju plays both twins, Adam and Eric.  Adam is a successful businessman whereas Eric has always been an irresponsible, willful  free spirit.  For years the brothers have been at odds.  After all those years of separation, Eric appears on the scene. During Eric’s visit Ingrid Williksen, Adam’s wife, accidentally kills Adam. She persuades Eric to pretend he is Adam until Eric can disappear.  You learn all this at the beginning of the story. More than that I will not reveal. But this is a worthy drama involving suspicious police, a confused daughter, and a conflicted wife.

Good acting and plot make this series worth watching.