Season 2: WTF??

So, I just watched season 2. Loved, loved, loved season 1 and thought it was brilliant! Season 2? I was like, WTF is this? Did they change writers or something?

Not only did the series drag on until the last few episodes, which were finally a bit exciting, but the damn thing made no sense!

OK, so the killer's wife helped him to kill the younger girl because she was a witness and thought he did it. And then, what, she testifies against him? But then needs hiding because she's afraid of him, even though she told Ellie in the car, "I know he'd never hurt me."

Why didn't she just go with him to France after he was acquitted, instead of mooching off of the DI and living in his house (and doing nothing for several years, not working or anything?)?

The damn thing makes no sense. It's like it was just stitched together to make it fit into season 1 somehow and was never carefully planned out.

And I won't even get into the ridiculous absurdity of the confession being thrown out of court because "it might have happened after the beating," even though his own solicitor was there and could have testified about when it happened without breaking attorney-client confidentiality.

Or the junior defense attorney just happening to notice, what, check deposits from the night of Ellie's sister's statement because the bank statements just happened to be left out the night she happened to be there??

There had to have been a new set of writers for season 2. It couldn't have been the same writers. I felt like I was watching some kind of stupid police serial.

David Tennant and Olivia Coleman were, of course, fantastic, and were about the only good things about this oh, so stupid, season of the show. I'm not even inclined to watch season 3 at this point, even though I loved season 1 to bits.