Nowadays, in France, where the monarchy has never been abolished, a plane crash kills the entire royal family. Samia, a naive teacher with no authority, learns that her son Cédric, a silly teenager born from a one-night stand with a nobleman, is the heir to the throne. Named Louis 28, Cédric has then many plans for the kingdom, such as the "abolition of math", but will have to deal with directives from a retrograde regent resolute to make him fail. Mother and son are thus propelled into the middle of a Court where perfidy reigns, and where nobody wants to see Louis 28 succeed.
