This is my second Freida McFadden book, the first being The Housemaid, which I loved. I did NOT love The Teacher. The characters are just vain, selfish, and have zero redeeming qualities. The plot starts off well enough, you can pretty much get the gist of what is happening and going to happen pretty quickly. But then it takes a wild turn and not for the better, but for the sloppy worse. 

In the Teacher you meet Adeline "Addie" Severson who is a young high school girl with a troubled family life and her own troubles that started last year when rumor had it she was having an affair with her math teacher, but she was really just stalking him. So Addie has a new math teacher Mrs. Eve Bennett and she is NOT a fan of Addie as she sees it, Addie single handedly got her mentor Mr. Tuttle fired from the school. But Eve is not the only Bennett teaching Addie, her husband Nate is not only Addie's new English teacher but also encourages her to join the poetry paper. You can see what is going on and know with her history of having zero boundaries with her teachers she and Nate develop an illicit affair, that comes to a crashing halt when Eve sees not Addie kissing Nate, but Nate fully going for it with Addie. Which is not great for Nate when he is confronted and given 
a list of ultimatums by Eve. What ensues it what you would typically watch on the Lifetime Movie Network. 

If you're looking to read a book that will not have you thinking  a lot and one that you don't need to pay super close attention to the book The Teacher is a great read for that. I still want to read the second installment of The Housemaid series as I really enjoyed the first book and thought maybe her other books would be the same.