Yalta, 1927. While colleagues race to paint pictures for the anniversary of the revolution, director Boris Winter starts work on a large-scale adventure film. But not everything goes according to plan: there isn’t enough money, a risky stunt leads to an injury, during filming by the waterfront they find a drowned man in the sea, and then even inside the film crew, there is a murder… To figure out what’s happening, a young operative from the criminal investigation department, Ivan Opalin, infiltrates the film people and realizes that not all of them are who they claim to be…