DASS-175 Married mother and 2 daughters are fucked

The movie opens with a scene where the mother is discussing with her daughter about a man coming to live with them, and that person will be her child's new stepfather. Even though she doesn't want it, the daughter has to accept it. endured because he wanted his mother to be happy. One day, while her daughter was masturbating, her lewd stepfather secretly filmed her on his phone, and the end result was that he used that video to blackmail his wife's stepdaughter.