The novel is not science fiction in the literal sense, although the discovery made by the scientist did not actually happen. The essence of the discovery is that the substance invented by the scientist had an effect on millions of women and men, forcing them to indulge in love on May Day, as a result of which all women exposed to this love were to give birth to twin boys. The intensely plotted novel contains love and hate, lyrical pictures and political conflicts. For the reader, everything that happens in a book is always unpredictable, just as the ending of the work is not predictable until the last pages.