It's pretty funny that after nineteen years, the mom still has the contact info of the guy she cheated with, and that the daughter was fully aware of it.
His gonna get knocked out and possibly fall into a coma by continually being drugged by his sister, meanwhile chaos will continue to ensue while the brother remains sleep in the background; at the climax of the story while the rest of the family is being ravaged by their Freudian hidden desires come to surface, he will awaken to hit them with the true moral: