Daddy, Darling

Katja lives alone with her widowed father, and the two of them share a deep affection. One day Katja’s idyllic life is forever shattered when her father re-marries. When Katja witnesses daddy and stepmother in bed, the shocking spectacle sends Katja fleeing. Abandoned by all those dear to her, Katja plans to win back her father’s attentions by disgracing her stepmother. How will Katja do it, and how far will she go? (official distributor synopsis)