Not the most intelligent crime show I've seen, but entertaining enough to hold my attention. Could easily trimmed down to 6, maybe 8, episodes. Murder after murder of characters that contributed nothing to the plot, they existed to be killed. I watched the series on HBO on my AppleTV -- I used the 10-second skip ahead function quite a bit.
At times the writers have the characters do some pretty idiotic stuff. For example, a police detective calling someone at the airport to tell them their life is in danger, but doesn't ask where in the airport he is is and tell him to stay put. It continues with the potential victim leaving the safety of the customer service desk and runs randomly through the airport to eventually hide in a restroom. In another scene the female lead gets a Skype call from the killer who gives her a message to give to the detective — she calls him on his cellphone and asks him to come over so she can tell him what the murderer said
ummm, something urgent related to an ongoing mass murder investigation and you can't just tell him over the phone, the one you're already talking to him on? I found myself saying and thinking the phrase "what idiots" many times throughout the series.
Still, there's enough of a plot to watch it through to the end. I do like how they identify the killer around the 4th episode, instead of waiting until the end and just pick a character — more enjoyable when the viewer knows and watches those investigating figure it out.
They talk fast, the subtitles flash by — around episode 3 my brain seemed to adapt and there was a lot less skipping back to read what I missed.
Season 1 didn't exactly motivate me to dive into season 2 — maybe someday when there's nothing else to watch I'll take a look. I'd like to see a version of this story re-done by the people behind the series "24" :-)