Pedro's mom has just died, reason that makes him go to Luvina in search of Tanilo, who recites the dead peolpe's messages in verse. “Hierba mala”, wild to the death, wants his powerful partner and murderer to be avenged, risking the child's life, who, between whispers and bullets, only wishes to acomplish his mother's last will.
When the authorities failed to help him out, a musician tries to find the thieves who stole his money creating the hashtag #Rats. This leads to people trying to find their own robbers and seek for justice on their own with the aid of social media.