Brødrene Dal og professor Drøvels hemmelighet

In 1950 professor Kurt Drøvel vanished while exploring the unchartered river Overfloden outside of Oslo, Norway. All rescue attempts failed. 28 years later, the brothers Dal have started a journey, by canoe, up Overfloden, in order to establish what really happened to professor Drøvel.

Brødrene Dal og professor Drøvels hemmelighet is a 1979 drama mystery movie, starring Trond Kirkvaag, Knut Lystad, Tom Mathisen. It holds an IMDb rating of 7.8/10 from 1,200 votes.