"The Fifteenth Floor" is an exciting psychological thriller written by the popular Ukrainian writer Lina Kostenko. In this book, she reveals the theme of the important choice between truth and lies, between fear and faith. The main character, a young architect Olena, gets the opportunity to work on an ambitious project for a large corporation occupying the last, fifteenth floor of a skyscraper. However, in the process of work, she encounters the secrets of the corporate world, where the truth is intertwined with lies, and friendship with betrayal. Bringing up the current theme of big cities and modern business, this book will captivate you with its unexpected twists, intriguing characters and intense atmosphere. The Fifteenth Floor is a book that will leave you thinking about how far we are willing to go in the pursuit of truth and justice.