Filmées en une seule prise sur la place de Lavapiés à Madrid, ces 20 histoires s'entrecroisent autour des thèmes de la conversation, de la communication et des mots.
Max is a Jack Russell dog genetically modified for criminal purposes so he is able to talk. Running away from the criminals he's working for, he is wounded, then saved by detective-wannabe Alberto, who is fire and house-hunting. They end up staying with Alberto's sister-in-law Marta and her two children. Thanks to them all, Alberto finally manages to be a detective, and he and Max establish their detective agency: Sabuesos.
Nacho Nieto, a journalist specialising in paranormal activity, is at a professional and personal low. After a failed suicide attempt he comes back to life accompanied by the ghost of his mentor, doctor Estrada, iconic communicator of mystery, who died more than 20 years ago.
Le monde de Raúl s’écroule. Marta apprend avec surprise qu’elle est enceinte. Après une rencontre improbable à un enterrement, ils vivent les hauts et les bas de la vie et de l’amour.