100 years ago, the Russian Empire ... Christmas Eve. December plugs, holiday celebrations, balls and modest luxury holidays, titled nobles and ordinary peasants, the royal family and the soldiers of the First World War, progressive poets and the first skaters - everything was different, except ... the holiday. People prepared, lived, believed dreaming and waiting for this miracle - Christmas!

Based upon the famous novel by H.G.Wells. A poor scientist named Griffin discovers a way to make things invisible. Since he has no money to continue his research, he decides to perform his only experiment on himself. After becoming invisible, Griffin has a lot of trouble trying to conceal this from other people.

The series tells about how police officers, investigating the case of robberies and murders in hotels, managed not only to neutralize, but also to expose major plunderers of socialist property.

A classic mystery story based on Arkadi Adamov novels.

Over officer Silvio laughed at the fate itself in the image of a brilliant and successful opponent. How not to challenge this fate! And how not to give her the right to shoot first?