In London, one autumn day, two children are born: Tom is the son of a petty thief and seems destined to lead a miserable life; Edward is the firstborn of Henry VII, the future sovereign expected by all. Without anyone knowing why the two look so similar, so when many years later they meet on the street they immediately become interested in each other. So much so that they decide to swap clothes and impersonate each other. . . just for a while. It will be very fun! Mmmm, but things get complicated quickly. . . The days go by and it is increasingly difficult to return to their old lives. What are they going to do?