This is the little-known story of an extraordinary, highly charismatic and adventurous character, born in 1900 in Tsarist Russia. A member of the nobility, Boris Skossyreff was a Nazi collaborator, “assistant” to the Queen of the Netherlands, but above all self-proclaimed king of the Principality of Andorra in 1934, quickly chased away by the French and Spanish authorities. Involved in the great conflicts of the 20th century from which he always emerged unscathed, this enigmatic man was in reality a professional crook and forger, but also a gigolo, organizer of orgies… An unpublished documentary, based on a fascinating investigation carried out over more than a decade, in collaboration with an international team of historians and advisors.