As others have commented, the constant winding back of time is confusing and takes some getting used to. I had to watch episodes 1 and 2 a second time in order to be sure I was making sense of it. However, having done so, it has become compelling to watch. It's an interesting and brave attempt to try a different take on the stock gritty police procedural murder mystery. As a one off, OK, it's worth sticking it out, if only to see how it can all be resolved without jumping forwards again, but I'm not sure I would bother if there were a second series. I, too, seem to think there's a disappointingly obvious twist coming and I'm only at ep 3, still there's time to be proved wrong, or else perhaps wind back the clock further and change the plot :-)
