The plot: Valerie (Amanda Seyfried) is a beautiful young woman torn between men. He is in love with the brooding out Peter (Shiloh Fernandez), but his parents have arranged for him to marry wealthy Henry (Max Irons). Want to lose the other, Valerie and Peter is about to elope when they learn that the older sister Valerie was killed by a werewolf prowls the dark forest surrounding their village. For years, people have kept their truce with the beast, a creature that has a monthly animal sacrifice. But under the blood red moon, the wolf has raised the stakes by taking human life. Hungry for revenge, people call the famous werewolf hunter, a father of Solomon (Gary Oldman), which helps them to kill wolves. But Solomon, the entry will bring unintended consequences, because it indicates that the wolf, who assumes human form of the day, could be one of them.
While the death toll is increasing every month, Valentina begins to suspect that a werewolf might be someone she loves. Panic city took Valerie discovers that the only connection is a beast - which inevitably draws together when both of his doubts ... and the bait.