Four friends have been together since first grade, however, adult life makes adjustments and now they see each other less and less. And that night, the friends decide to gather for their last barhopping...

Former military pilot Shaposhnikov is investigating the case of the disappearance of a passenger plane in 1998. The case unexpectedly develops in the present, when one of the passengers of the disappeared flight gets through to his family. Anna, a journalist, is involved in the case, who knows this mysterious story firsthand.