As the titular star of Gavin O’Connor’s The Accountant (B), Ben Affleck’s character can’t start a puzzle without completing it. This curious protagonist, equal parts autistic auditor and stone cold killer, takes his cues less from Rain Man and more from John Wick, and much of the movie is an enigma wrapped in flashbacks and unexpected links about organizations and people embezzling one another. John Lithgow and Jean Smart are part of the riddle as c-suite siblings at a robotics company where Anna Kendrick’s character handles the finances. J.K. Simmons and Cynthia Addai-Robinson represent the treasury department on a mission to solve a money laundering mystery, and Jon Bernthal is a security company executive with a past. There are moments of droll humor and flashes of shocking violence as the story twists into shape. The story and tone start out a bit by the numbers, and ultimately the ledger gets rather fetching.