Told in flashback, the film recounts the events leading up to the killing of good-for-nothing Curt Jurgens. Warned by her friends and relatives that Jurgens is a bad job, impulsive Ina Kahr marries him anyway. His ceaseless philandering and abuse wears away at Ina to the point that she contemplates poisoning her husband...
This German drama tells the story of a musician who is killed and leaves his work unfinished. His apprentice is cleared of the murder and turns out to be the real composer.
Peter, un humilde vendedor de coles, decide casarse, por lo que acude al hombrecito de cristal, que le concede dinero y bienes. Pero Peter gasta su fortuna a manos llenas antes de la boda, y tiene que invocar al malvado Michel para salir del apuro. Éste le exige su corazón a cambio de cumplir con sus deseos. Con un corazón de piedra, Peter se vuelve cruel e injusto. Sin embargo, un resto de humanidad le hace recapacitar, y en su desesperación clama de nuevo por el hombrecito de cristal…