Episodes 1-5 were mainly well acted with good writing which included some stupid decisions. But the final episode's most of the main events were written awfully. Series was too cocky in trying to be a deep and complicated thriller and did the biggest mistake it could do to fail showing a conclusion that could satisfy even a bit.

Madden's acting was very well delivered and it kept the show in a good level until the end. And yes the ending in a genre like this is the most crucial element in my opinion.