Reg Park returns as Hercules in this horror-tinged fantasy epic from director Mario Bava. When his beloved Deianira (Leonora Ruffo) is robbed of her senses, Herc doesn't shirk from the task of finding a powerful stone that will restore them... even if it means a descent into the bowels of Hades and a confrontation with the evil King Lico (Christopher Lee). With George Ardisson, Marisa Belli. AKA: "Hercules in the Center of the Earth," "Hercules vs. The Vampires."