Putting on a mask, the protagonist of the film goes to the nightclubs of St. Petersburg to conduct his own anonymous study of the phenomenon of club life. In the field of view of a man in a mask, various clubs fall into the field, small and large, expensive and those that are simpler. Communicating with different people, owners of establishments, DJs, dancers, visitors, the protagonist peers into a whole generation of people for whom a vibrant nightlife is an integral part of existence.