Whether in front of the camera, behind it, or — occasionally — both, Ben Affleck is a man who knows his way around a taut, tense thriller. From The Town to Argo and from Gone Girl to The Accountant, an Affleck under pressure is generally an Affleck well worth tuning in for. And now, having already starred in one banger Netflix thriller this year (The Rip — go check it out!), the two-time Oscar winner is back directing and starring in what looks …