Within the depths of a deserted mine lies a terrifying presence known as the Black Ooze, a demon capable of absorbing the essence of all it contacts. After its fateful encounter with a man, it gains cunning intellect and insatiable lust, causing turmoil for a sorceress who ventures into its lair. As brave adventurers venture into the tunnels in pursuit of fame and fortune, they are soon to discover the perilous nature of facing such monstrous foes.