Sergei Lukyanenko’s works.

quote - The events in the movies took place in the books. They were dreamed up by Yegor - the plot in the books and movies overlaps by about 50%

It's more like 15%, or even less. These 15% are terms like "Others," "Twilight," "Watch," the same names for some characters as in the books, and a couple of similar moments.

Also, the movies completely distorted the theme and the meaning of the books, and they turned Anton into some kind of loser. It's embarrassing to even compare Zavulon from the movie with Zavulon from the books.