Series One was fresh and very good partly for that reason. Series Two was same as and so not so fresh, same as Series Three, same as Series Four. Hank has messed up so many times! It's become ridiculous, caricaturish (perhaps that's the idea, but it's stopped working for me). It doesn't hang together, as neither does Karen having forgiven him so many times. Even after the statutory rape trial he's still the same, perhaps even worse, and so it's become irritating, his character has become irritating. It feels like the writers hit on a winning formula in Series One and stuck with it as a cash cow. There's been zero character development.