Gifted fifteen-year-old Francisco Guzman has become an internationally renowned concert pianist, touring the world under the auspices of his music conservatory. That gives his mother, Posadas County Undersheriff Estelle Reyes-Guzman, plenty of reason to worry—and that's magnified when she learns that he's in Mexico's crime-ridden Mazatlan for a concert series where he may be the target for scam artists and kidnappers. Estelle's worries go from bad to worse when her uncle surfaces in the small town to mend family ties and leaves a trail of corpses in his wake. Meanwhile, escalating events put Sheriff Bobby Torrez in jeopardy—and with a criminal willing to openly attack local law enforcement, the citizens of Posadas County are in incredible danger. And just when his sage advice might be most useful, former county sheriff and family friend Bill Gastner is injured and out of commission. As the situation on both sides of the border heats up, the inevitable outcome grows more and more deadly.