I, like the the other & only user comment, also enjoyed the series immensely, and share his/her take on it. So I won't be repetitive, but I will be very informative, hoping this is not considered a response to another comment- apparently a no-no and it isn't a response.
I just saw it yesterday in a Sunday "marathon" of all 4 episodes. That said, IMDb only shows US TV listings. So for all of you (us) in the rest of the world, "Eurochannel" (which carries a lot of "Canal + and ARTE" TV movies and series) has been showing it from one end of the Americas to the other since, at least, last month. If they follow their perfectly predictable transmission pattern, this mini series will play REGULARLY (4 or 5 times per month is their norm). Then, for another year, at least - that's twice every couple of months for another 2 years or so - both as single episodes and in the full marathon version. So, look out for it.
As the other comment suggested, it is probably impossible to watch it, if not in this way. The DVD will only be launched in Europe. FYI, I only want to inform potential fans of the film, I subscribe, and do not work for or own stock in "Eurochannel". This channel, showing this film, is usually carried by Direct TV cable/satellite TV in most countries, and here in Brazil, also by the largest of the satellite companies, so that may be the case in other countries as well.
In any case, the TV transmissions and commercials display its show times in Canada, Mexico, Brazil and Argentina (the four largest markets in the non-US Americas), so at least throughout the Americas it is now playing, and Eurochannel is not a "premium" channel like the "HBO-Cinemax" channels, so the film is being transmitted widely and not just to the elite with the most expensive pay TV packages.
Definitely a must-watch for fans of European mini-series, French films (it has a great and known cast) and "Sixth Sense" type films, but in a different setting.