"The Wolf" has no scruples and, just like in wild life, is more effective and lethal when in pack. Olivia and her investigation staff are marked by the dark online game, showing that they are willing to do everything in order to accomplish their mission. Celeste manages to go into the jaws of this insatiable beast, but her courage puts her in a position from which she will hardly come out alive.

The three women detectives are about to find the alpha wolf behind the packs, but to do so, they'll have to become a pack of women willing to show their teeth: just as new packs are born, the weak ones begin to die, although a fundamental lead may disappear with them. "The wolf" keeps claiming victims, although his insatiable hunt is about to reach an end.