Diana González works for the police and successfully eliminates narco dealers. One of the narco bosses, Constantino, decides to punish her by making Diana's sister to use drugs. This poor girl ends up dying in a S&M orgy. Now Diana is going to kill all those who wronged her with her Machinegun (La metralleta) while being pursued by drug dealers and the local police.
| Actor | Role |
|---|---|
 Susana DosamantesDiana 'La metralleta' | Diana 'La metralleta' |
 Carlos CardánCapitán Robles | Capitán Robles |
 Juan GallardoConstantino | Constantino |
| RRoberto RuyPitarras | Pitarras |
 Julio RasecCubano | Cubano |