While Finn O'Casey is working late one evening during tax season, the IRS, led by a rogue agent, raids his home instead of his mob-boss neighbor's. O'Casey's wife and young son are accidentally killed in the raid. The rogue IRS agent tries to cover his tracks by placing a weapon in the dead wife's hand to create the appearance that he shot her in self-defense. The neighbor, a major crime figure, while sympathetic for O'Casey's loss, is not what he seems to be. Both the rogue agent and the neighbor thought O'Casey was a mild-mannered accountant. They thought wrong.

To escape the vengeful O'Casey, the agent tries to frame him for the murder of another IRS agent. Local, state, and federal law enforcement officials quickly accept O'Casey as the prime suspect. But the FBI's lead investigator, a young Native American woman named Marcie Billie, isn't convinced the CPA is the killer.

Moral: Be careful who you choose as a victim.