The mystery of house number 4

In 1970, Yevhen Borysenko disappears from a country house outside Kyiv. The son of a senior Communist Party official, he had spent the previous evening at a party attended by the children of the Soviet elite. His new girlfriend, a laboratory assistant who had stumbled into this closed world, was there too.

No one saw Yevhen after the party. Investigators pursued several theories, until help arrived from an entirely unexpected source.