Sunday, 8.30pm, UKTV This BBC crime series continues with yet more twists and turns, breathtaking in its intensity, spare and uncluttered. Starring Steven Mackintosh as John Coniston, the whey-faced manager of a British cash counting house, it begins with the violent robbery of the Big Safe, the chief security guard shot in the knee, Coniston’s family held hostage and the manager himself bashed before the masked robbers escape with a lorry-load of cash. Then the show flashes back nine months and Coniston is now, at the start of episode three, entrenched in a humdrum normality: married, mortgaged, scraping by. We’ve seen in the previous episodes how the heist was planned, Coniston’s possible role in it and now in this third episode — as the plans come together — how the various participants’ lives are being affected. I’m giving little away — Inside Men is a top-class noir drama, deliciously intriguing, superbly plotted and acted with integrity. The narrative pace is excruciatingly protracted. We know where the protagonists are headed up to a point — but they do not.