A maniacal murderer "arrives by train" at the Boca dam in Santiago, Nuevo León, terrorizing the population and tourists who go out for a boat ride. Only Lieutenant Romo and his new police partner will be able to prevent more crimes in the region.
| Actor | Role |
|---|---|
| IIsauro SalazarRomo | Romo |
| AAdriana Almaguer TamezNora | Nora |
| EEduardo AlanizManiático | Maniático |
| JJuan GuerraComandante | Comandante |