Good, arguably great cast - maybe its just poor material. It should work but it doesn't.
The plots are very thin and very predictable
While Kate Ritchie gives it her best, I don't believe her heart's really in it. The Rhys Llewellyn character (Martin Dingle-Wall) is unbelievably over-the-top in as much as the character's womanising comes across as cringe-worthy bordering on misogyny that would have seemed crass even in the 1970's when it was almost acceptable.
The rest of the cast like Kate Ritchie really do try very hard. Denise Roberts might have been miscast though - a quite unlikely senior police officer; she doesn't have the 'bark' for it.