In San Francisco, a hard-nosed, no-nonsense police inspector becomes embroiled in a high-stakes game of cat and mouse with a cunning and psychopathic sniper, who has taken to the streets with a high-powered rifle, terrorizing the city. The sniper, calling himself "Scorpio," demands a hefty ransom from the city to cease his killings, setting off a frantic manhunt. The inspector, known for his unorthodox methods and willingness to skirt the edges of legal boundaries, is relentless in his pursuit, driven by a deep-seated sense of justice and duty. The tension escalates as the city becomes a powder keg of fear and paranoia.

As the inspector digs deeper into the case, he faces mounting challenges from both the criminal he's chasing and the system he's supposed to serve. His methods, while effective, draw the ire of his superiors and the public, leading to a complex examination of the morality and efficacy of his approach to law enforcement. Caught between the bureaucracy of the police department and the deadly game initiated by Scorpio, the inspector's resolve is tested to its limits. His journey through San Francisco's urban landscape becomes not only a quest to save lives but also a personal battle to maintain his own sense of right and wrong amidst the chaos.