Conde is a descendant of one of the doctors involved the original Werewolf of Allariz court case that took place in 1853/54 in Galicia, Spain.

[4] The same case previously provided the basis for the 1968 Spanish film El bosque del lobo ("The Wolf's Forest").

The story takes place in 1851 in a small Spanish village apparently plagued by what we would now call a serial killer, as corpses are discovered bearing both savage mutilation and precise surgical incisions.

[6] Jonathan Holland of Variety commended the film for its cinematography, visual and audio effects, as well as Sands' and Pataky's performances; but felt that the romance was underdeveloped, stating that the script covered too much ground and lacked "dramatic focus".

[9] AllMovie's Jeremy Wheeler praised the film's cinematography, production values, special effects, and performances.