Hugo Blick is arguably the most ambitious writer of television drama in Britain today, and he certainly restates his case with 'Black Earth Rising', his latest work, which is by turns brilliant, intelligent and maddening. The series touches upon an immensely difficult subject - the Rwandan genocide - and amazingly manages to give mass murder a delicate, nuanced treatment without hiding from the horror. The acting and direction are also first rate. And yet, I found the central character deeply unappealing (though impressively portrayed by Michaela Coel), a person who demands the right to set the terms of debate with an inner sense of absolute moral certainty. Blick's script allows for the fact that she might be a difficult person to be around; but not that she might be wrong. And if part of Blick's skill is to distill huge issues into personal dramas, there are perhaps unintended side effects, most obviously that the fate of a country seems to be in the hands of a handful of people, all of whom know each other extremely closely, but this goes uncommented upon. In some ways, these two issues coincide - that the good guys have the right to represent their nation is presented almost as a given. Yet while I can nitpick, it's a story that will remain in my mind long after countless police procedurals have been forgotten. It's worth your time.