In 2006 journalist Joanna Moorhead discovered that her father's cousin, Prim, who had disappeared many decades earlier, was now a famous artist in Mexico. Although rarely spoken of in her own family (regarded as a black sheep, a wild child; someone they were better off without) in the meantime Leonora Carrington had become a national treasure in Mexico, where she now lived, while her paintings are fetching ever-higher prices at auction today.

Intrigued by her story, Joanna set off to Mexico City to find her lost relation. Later she was to return to Mexico ten times more between then and Leonora's death in 2011, sometimes staying for months at a time and subsequently travelling around Britain and through Europe in search of the loose ends of her tale.