Actually, having now watched the final part of Cold Call.....that's joint second or third best thing. Only slightly less pleasingly twisty than Guilt, great cast, characters that were rounded, convincingly flawed and interesting, an equally satisfying ending, and Geoff McGivern doing a not-at-all nice 'businessman' on a par with, if not better than, Bill Paterson in Guilt. Five striped it over four consecutive nights, and it wasn't 'let's get this thing over and done with'. Blood last year was splendid, but this topped it.