Really pointless
I hoped that this was at least good as the first Glass house but unfortunately I was wrong.
While the first Glass House had a story to follow and real twists, this was a creepy pointless acting. Only one twist in the story and, although the main characters were in a scary situation, the things seemed to go random, without a story to follow.
For me the ultimate dissappointment was to listen to the audio commentary of the DVD. There you can listent to the director and the producer of The Good Mother talking a lot about how fast they shoot the various movie parts, cutting away ideas and scenes only due to time and money problems.
I understand that movie-making is an industry and that behind a movie there are workers, unions, money, time, many problems to confront and so on.
But I think that the idea is also a vital component of a movie, and the fact that they do little talk about the plot to me is a red flag.
If you want a thriller with a believable story, believable characters and real twists rent the first Glass House movie (plus it has the beautiful Lelee Sobiesky in it, not that Jordan Hinson isn't a nice and beautiful teen ... but I find sister and brother of the first movie nicest)
Guido