Despite the tendency to compare it to recent offerings like The Bridge and The Tunnel etc, really you should forget those and seek to approach this with a clean slate.
We're seeing it with a head start here in Australia, and episode 2 shows that the promise is there to live beyond the initial opening episode and what are always grand setups.
Whats truly astonishing to me is that for the lead actress, Marie Dompnier, this is the first outing for her in front of a camera (i understand she is a seasoned theatre actor). She is transfixing, not only for her appealing appearance (i already have a crush, but will move beyond the superficial hereon in!), but for making her confident female detective character utterly believable. Its something of a triumph right there. She looks as though she has been acting on film for some time. I hope to see more of her in the future.
As i said, im 2 episodes in and i cannot not follow through!