A despairing scholar sells his soul to Satan in exchange for one night with a beautiful young woman.
A story about CHeKa operation against a foreign spies during the early years of Soviet Russia.
The series is about the operation code-named "Trest", which under the leadership of F.E.Dzerzhinsky was carried out by the VChK to identify and eliminate the counter-revolutionary and monarchist underground on the territory of the USSR, associated with foreign white-emigrant organizations.
