The Soviet Union's war in Afghanistan in 1979 is still full of secrets. And one of the most intriguing of them is connected with the operation "Baikal-79". The fight at the Taj-Bek Palace, the residence of the leader of Afghanistan, Amin, lasted only 43 minutes. But it was preceded by a long series of intrigues in Moscow and Kabul. The film tells about these intrigues.