"Your husband is sleeping with your student" – Olga finds such a note in one of the bouquets that were presented to her in honor of her triumphant speech at the scientific forum. Olga is a mathematician. She can easily figure out who sent this anonymous letter. Except this man is found dead. This is how a dangerous game begins, each move of which is associated with one of the Fibonacci numbers. What do they mean and how are they related to Olga's life? The answer is far in the past. Every mistake will cost the life of someone close to the heroine.

Michael's perfect life changes dramatically when he discovers a portal wich allows him to travel in time. He travels back to the World War II to go through the quest of time and find his one and only beloved.

Van'ka works as a doorman at the hotel. He hates its wealthy guests, but has dreams to live a luxurious life. Forced to live in a car, he's miserable. In this already difficult situation he comes across the collector Sergey, who is determined to knock out the debt out of Vanka.

1925. There have been unrest in Western Belarus for four years now, there is a guerrilla war going on, and Soviet intelligence agents are working. And attempts by local residents to defend at least their own faith and church end in brutal suppression.

In the summer of 1999, in one of the cities in southern Russia, a terrorist act took place - the explosion of a residential building. The investigation into this case is led by an FSB operative, Captain Andrei Vereshchagin, nicknamed Captain Hollywood.