Reclusive former news anchor Anna Andrews becomes obsessed with a murder case in her hometown. Her estranged husband, Detective Jack Harper, suspicious of her involvement, puts Anna in the crosshairs of his investigation.

When an old acquaintance is murdered, Wolff is compelled to solve the case. Realizing more extreme measures are necessary, Wolff recruits his estranged and highly lethal brother, Brax, to help. In partnership with Marybeth Medina, they uncover a deadly conspiracy, becoming targets of a ruthless network of killers who will stop at nothing to keep their secrets buried.

Gavin O’Connor: We should make this a trilogy. So what’s the middle chapter?’ That became The Accountant 2, exactly as we envisioned it. And now, we have The Accountant 3 on the way. We’ve been now kicking the tires on what that story is. So, we’ll be doing that next.

When an old acquaintance is murdered, Wolff is compelled to solve the case. Realizing more extreme measures are necessary, Wolff recruits his estranged and highly lethal brother, Brax, to help. In partnership with Marybeth Medina, they uncover a deadly conspiracy, becoming targets of a ruthless network of killers who will stop at nothing to keep their secrets buried.

A successful lawyer returns to his hometown for his mother's funeral only to discover that his estranged father, the town's judge, is suspected of murder.

As a math savant uncooks the books for a new client, the Treasury Department closes in on his activities and the body count starts to rise.