The frozen bodies of 15 men are discovered on an abandoned bus in the middle of the northern French countryside.

Sandra and the investigating team begin to figure out the killer's modus operandi, as Sandra becomes increasingly convinced that Catherine holds the key to the mystery.

When the body of a young woman is found buried under a wind turbine, police work to figure out if and how this death might be related to the other murders.

Believing him to be the kidnapper, Catherine holds Martin Souriau captive. She is frantic to find her missing child and will go to any length to make Souriau talk.

Antoine's car is found on the side of the road in the middle of a forest, but there is no trace of Antoine himself. Sandra is still on the run with Catherine.

Sandra investigates the Mount St Michel orphanage, and discovers an old group photo of the children who once lived there. She decides to track down each of the children.

Sandra has fallen into the clutches of the killer, who is keeping her captive and intends to subject her, and her former lovers, to the same treatment he had given his previous victims.

Will Sandra manage to get away from Geir Jansen, or will she become his next 'bride'? What has happened to Eric and Sandra's other former lovers? Will Catherine find her baby?