If your children were forced to testify against you, what terrible secrets would they reveal?

Moscow 1945. 

As Stalin and his courtiers celebrate victory over Hitler, shots ring out. On a nearby bridge, a teenage boy and girl lie dead. But this is no ordinary tragedy and these are no ordinary teenagers, but the children of Russia's most important leaders who attend the most exclusive school in Moscow.

Is it murder? A suicide pact? Or a conspiracy against the state?