Witnesses Season 1 (2015)

Graves have been desecrated and the bodies dug up and left in model homes. Every time the same ritual: a woman, a man, a teenager, all unrelated but they form a new family. Amid the bodies, a photo of Paul Maisonneuve is found, a Crime Squad legend in the North of France who is forced to return to duty. Who is digging up the bodies and why are they leaving them in model homes?