Still Life by Louise Penny

The discovery of a dead body in the woods on Thanksgiving Weekend brings Chief Inspector Armand Gamache and his colleagues from the Surete du Quebec to a small village in the Eastern Townships. Gamache cannot understand why anyone would want to deliberately kill well-loved artist Jane Neal, especially any of the residents of Three Pines - a place so free from crime it doesn't even have its own police force.

But Gamache knows that evil is lurking somewhere behind the white picket fences and that, if he watches closely enough, Three Pines will start to give up its dark secrets...