Did you see The Killing last night on BBC4?
If you didn't I recommend that you catch up. It's a Danish tv drama about a 20 day investigation into the murder of a young woman. Soon after the investigation begins evidence is found pointing to local politicians and the media.
What gives this show an edge is that, unlike most tv detectives, the lead character is a woman investigating what you could call a hate crime against women.
Genuinely thrilling stuff.