The film celebrates the spirit and aesthetics of a certain pulpy genre of Italian ’70s cinema, exploitative but not only, B-movie but not only…. The story begins with two troubled lovers fighting during their journey into an unknown town, where they end up in an empty inn served by two unsettling waitresses. The place hides something dark, nourishing of their bad blood, transfiguring their feelings, attracting them in the darkness of its underground: this is the beginning of the descent into Hypogeum.