Netflix has debuted a new trailer for the third and final season of its horror thriller "Hemlock Grove."

In what's called "The Final Chapter," the town’s grim secrets continue to unravel at an alarming pace, as Olivia (Famke Janssen), Roman (Bill Skarsgård), Peter (Landon Liboiron) and Shelley (Madeleine Martin) are introduced to mysterious new people while facing dangerous and unexpected obstacles. As enemies close in, Peter and Roman learn that in order to prevent the "end of days,’" they'll need to sacrifice their humanity and release their true inner monsters.

The third season of "Hemlock Grove" premieres Oct. 23 on Netflix.