Lost Chapter of Snow: Passion

Yuki no dansho - jonetsu is a movie starring Yuki Saitô, Takaaki Enoki, and Kiminori Sera. The story deals with a young girl getting adopted by a family that holds her like a slave and then being "freed" by a young man working for...
A young girl gets adopted by a family that holds her like a slave and is later freed by a young man working for the family's company. 10 years later, she gets involved in the murder of one of her step-sisters.