Rocío and her four brothers live in La Mancha village. Unemployed, they glean a few coins from tourists that stop by to see the view, showing them an old windmill and convincing them that it was the same that Don Quixote had fought in the old days. (Quixote being a literary, not an historical character). By chance, Rocio meets a couple in difficulties, as the wife refuses to accept that her daughter died recently. In an attempt to get the wife interested in life again, the man asks Rocio to pass as the missing daughter. Telling lies was her job, so Rocío accepts, knows a luxury life in Paris, but then one problem compounds with another, one lie leads to another, and the young woman doesn't know how to sort things out.