For a film version of a story by Jorge Luis Borges made for the BBC, Alex Cox chose his favourite studio in Mexico City as workplace. As a result he was able, in his own words, to make a film with a modest budget yet an enormous production value. Protagonist is detective Lonnrot who works in a city which looks most like Mexico City in the not-too-distant future. His approach is unusual and successful: he hates the obvious and, like an alchemist, prefers to seek the most complex and intellectually most demanding way to solve a crime.