I have no idea how to interpret why people do what they do. That makes two of us, bub. Christian Wolff (Ben Affleck) is the autistic number cruncher working out of a strip mall south of Chicago. But he’s being hunted down by a T-man (JK Simmons) whose pursuit has some personal impetus. Is it possible that Wolff – who likes target practice – is laundering money for the Mob? And is a decent hitman to boot? There are flashbacks to a troubled child whose mom walks out and whose military dad takes him and his brother all over the world to learn fight techniques. When Christian is hired to look at the books of a robotics technology firm run by Lamar Blackburn (John Lithgow) his mathematical genius uncovers a plot nobody thought he would uncover and the eccentric accountant Dana (Anna Kendrick) at the firm could wind up as collateral damage as a string of hits is carried out. There’s a hard man Brax (Jon Bernthal) who is being deployed to off awkward embezzlers – and is currently including Christian in his sights. … What a weird idea. An autistic assassin-accountant. And yet the DNA of this is so tightly wound around parallel plots – the psychodrama of a mentally ill child genius combined with a government hunt for money launderers and it gets tighter as it progresses. Bonkers, with an astutely cast Affleck (line readings were never his thing) in a thriller like no other. Adding up, with more bodies. That’s mental illness for ya. If you can see the end coming you are a better man than I. You might even BE a man. Written by Bill Dubuque and directed by Gavin O’Connor.