Denis Lavrentyev is released after many years in prison for the murder of his fiancée—Nastia Voronova. He was found guilty of a crime he did not commit, but the collected evidence looked flawless and pointed to him.
A new lawyer, Stupenkov, and investigator Vyazov take on the review of a case that has already been closed, trying to find what was once missed. But the sudden death of another figure involved—the brother of Nastia—and the death letter he left behind with an admission, though not to the murder that all of this began with, become the impetus for a new round of the investigation…