Boi is a young man starting out in a new job as a chauffeur. While anxiously waiting for news from his girlfriend regarding a decision that could change both their lives, he must accompany his first clients, Michael and Gordon, two Asian businessmen who have come to Barcelona in order to close a multimillion-dollar deal.

What if … you let a stranger into your house to use your phone, but while you’ve been patiently waiting in the kitchen, he just disappears … or does he? Félix, an architect who has just split up with his girl-friend and inhabits a huge mansion in Barcelona, finds out how many hiding places there really are in his house. But are there enough to hide another person, a strange parasite of living space? Or is Félix really going insane?