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

https://www.themoviedb.org/movie/870028-the-accountant-2