In a gritty Mexican town, a mysterious and brooding musician, who carries a guitar case filled with weapons, arrives hellbent on avenging the death of his beloved. He’s searching for the drug lord responsible, a vicious man named Bucho. As he begins his quest for retribution, he leaves a trail of destruction and bodies, catching the attention of both allies and enemies. A chance encounter with the sultry Carolina, a bookstore owner, adds complexity to his mission as she becomes embroiled in his dangerous path.

As the musician gets closer to his target, he faces an escalating series of brutal confrontations with Bucho's henchmen. Each encounter tests his resolve and brings him nearer to the truth about Bucho’s operations. Carolina, drawn to his cause and charisma, decides to join forces with him. Together, they weave through a tumultuous landscape of betrayal, bullets, and bloodshed, all leading up to an intense showdown that will determine their fates and the future of the town.