When his son is shot, "Sternwood" (Mark Strong) has to return from his Icelandic hideaway to get to the bottom of it all. That puts him back squarely into the sights of cop "Lewinsky" (James McCoy) who has an old (and painful) grudge. What now ensues is a really formulaic and unimaginative drama, though, as both men realise that they are being played by a higher, manipulative and malevolent power and conclude they…