There is a summary at the Amazon website (the summary is free, they will gladly sell you the book). It might be harder to find the Hebrew original in the USA.
Cliff notes or Spark notes only exist for “classics” that have been adopted as required reading in a large number of schools, not new popular literature. If the book is widely read in a generation of so, you’ll find published summaries. The only secondary sources for current popular novels are book reviews.
If you combine the title, the author’s names (he uses a pseudonym), and the words “book review” you’ll find reviews about the book.