Well, there you go. Two murder mystery cases and two connected dreams, running concurrently, with the same murderer in each. The trouble with that is, once one mystery is solved, then the other one is automatically solved too. This makes the final episode slightly odd since the big reveal happens halfway through. This kind of ruins the surprise (assuming, of course, that you haven’t already worked out who the killer is).
I admired this series, with its two interweaving storylines. It occasionally didn't quite exploit the possibilities, though. For example, one woman communicated to the other woman via letters that she’d write. When the husband found these letters which apparently predicted his wife's death, then I thought that something big was about to happen as he would no doubt demand to know more about them. Nope. In fact, he didn’t seem that bothered.
There was a lot going on in this drama. Too much, however, to all sort out in one final half-hour episode. An excellent idea, but the ending couldn’t match the build up.