On the Sunny Side (1956)

Ester (Randi Kolstad) has married into a wealthy family which lives in ignorant bliss about the world's problems. She doesn't get along with her mother-in-law (Ellen Isefjær), who thinks she married her son Hartvig (Arne Lie) only for the money. Ester knows the dark sides of life, and prepares for a showdown with her in-laws, who've always lived on the sunny side.