Upon his release from a mental institution, schizophrenic Gregorio (Gabriel González) takes his own life and extinguishes his loved ones' cautious hopes for his recovery. In the wake of Gregorio's death, his best friend, Manuel (Diego Luna), receives a weathered box containing a series of bizarre messages. As Manuel struggles to decipher their meaning, he leaps headlong into an affair with his late friend's lover, Tania (Liz Gallardo) -- an affair that began long before Gregorio's death.