Der Brennende Acker

When farmer Rog dies, his son Peter stays, but Johannes can not be satisfied with such a condition (and servant Maria's love) and finds a job as old Count Rudenberg's secretary. His ambition leads him to charm Gerda, the Count's unique daughter. But when he discovers that Count's second wife Helga will soon inherit a field that only he knows his underground is full with petroleum, he changes his allegiance... Greed and death. (imdb)