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?

Manuel is a crooked politician who enjoys the lifestyle that kickbacks afford. He eats at fancy restaurants, parties with his friends on yachts, and provides a very luxurious lifestyle for his family. Manuel brazenly bribes, extorts, and pays off anyone who threatens to expose the activities of his inner circle. When he is singled out to take the fall for a case of fraudulent government contracts, rather than admit to any wrongdoing, Manuel decides to sell out his whole party in an effort to avoid jail time. It's a decision that puts many lives at risk.

Madrid, summer 2011. Economic crisis. 15-M movement and 1.5 million pilgrims waiting for the Pope’s arrival live side by side in a Madrid that’s hotter and more chaotic than ever. In this context, detectives Velarde and Alfaro must find what seems to be a serial killer. Their against-the-clock hunt will make them realise something they’d never imagined: neither of them are so very different from the killer.

Garrett is a rising YouTube star. Shell is a deeply emotional fan. When they begin a romantic relationship, he's forced to question whether opening your life to strangers online is an invitation to community and rescue...or to stalking, obsession and madness.