How about this for a plot

Merry Christmas

When Anita bought her family a video game system for Christmas, she thought it would be the one thing that would pull them back together. Her two children, Rachel and Rowan, both teenagers, had become distant and she was afraid they were getting into other things, like drugs. Both had a face full of metal already and neither ever wanted to be around family or listen to anything they were told. It was getting progressively worse. Anita worked for the company that made the game system; she was familiar with it so she thought it was perfect. That lasted for about the first week. After that, things changed. They changed for the better. Too much better. Suddenly the kids took out their piercings, started keeping their room clean and even stopped using the horrible street slang and cleaned up their language. Both of them went from failing every class to straight A students. Initially, Anita was elated, but it was too good to be true. When Rachel and Rowan started inviting their friends over to play, and the effect was repeated, she got worried. Anita was a programmer, she had access to the heart of the programs they were selling. It was time to tear the program apart and find out what was really in there. In the process of going through the program that went on the market, Anita makes some startling discoveries, but she hasn’t stayed under the radar.