Christian Lagadec

Nick and Hank investigate a police killer who scalps his victims. Meanwhile, Juliette begins email communication with Nick's mum and Adalind realises that she may soon be giving birth.

A romantic day for Monroe and Rosalee takes a dangerous turn when they encounter a bloodthirsty creature.

Nick and Hank investigate a drowning death where the victim has mysterious marks on their ankles. Meanwhile, Rosalee is unpacking and Captain Renard makes a realisation about the possible identities of the Royal Baby's parents.

Criminals start to fall victim to a series of brutal murders. Whilst investigating, it appears to Nick that the culprit may be a character from a Latino legend, on a vigilante killing spree.

The teenagers Derek and Quinn break into a car together and steal the presents that are in the vehicle. However, they are surprised by Knecht Ruprecht, who kidnaps Quinn. A little later, other children also disappear.

A series of disturbing crime scenes leads Nick and Hank to the unearthing of an old feud that's very familiar for Nick and Monroe. Nick does medical tests which show that his heart rate remains low no matter how hard he strains.