A French cultural research group arrives in Finland. From Helsinki, the group travels to Saimaa to participate in Midsummer rituals, where the summer night celebrations overwhelm the researchers.
as Mattila - School teacher
as Mr. Sedano - professor
as Mr. Lang - Sedano's assistant
as Sedano's secretary
as the girl of the raven house
as interpreter
as the wife of the chairman of the municipal council
as dealer
