The sudden death of Hasan, the owner of a flower shop in Moscow, shocks his brother Mubariz, a member of the Special Forces. Hasan's death, which seems like a normal accident to everyone, seems strange and mysterious to Mubariz. He accepts the incomplete "Qagash" message he received from his brother a few hours before the news of his death as the code for this mysterious event. Mubariz comes to the Russian capital to learn the details of his brother's death. Together with Hamza, his childhood friend and Hasan's confidant, they plan to take revenge.