In the shadowy streets of Chicago, where the line between ambition and betrayal blurs, seasoned private investigator Black Love takes on his most dangerous case yet. Isadora Rocha, a mysterious woman with secrets of her own, hires him to recover a priceless relic: a 1942 antique guitar masterfully crafted by Osmar Álvares Macêdo and Adolfo "Dodô" Nascimento.
 
The trail leads Black into the crosshairs of Patel, a cunning black-market kingpin whose empire of stolen antiquities stretches across Chicago. As Black peels back layers of Patel's operation, he stumbles into a treacherous underworld where greed, obsession, and violence reign supreme.
 
Complicating matters, two relentless treasure hunters—Victoria Cage and Benny Gates—vie for the guitar, each with their own agenda. Their rivalry takes a brutal turn when one is found savagely beaten and left in a coma, leaving Black with fewer allies and more questions. When a key clue pointing to the guitar’s whereabouts inexplicably vanishes, it becomes clear that someone will stop at nothing to keep the past buried.
 
Caught in a web of lies and shifting loyalties, Black races against time to unravel the truth. But in a world where deception is currency, the pursuit of a musical artifact unearths a sinister conspiracy with deadly stakes.
 
Spanish Guitar is a pulse-pounding crime thriller that explores the dark underbelly of Chicago, where the hunt for a rare treasure leads to betrayal, bloodshed, and the haunting echoes of a city’s secrets.