We are in the Necromanteion (literally meaning "Oracle of the Dead”) of Acheron (an ancient Greek sanctuary of necromancy devoted to Hades and Persephone) in the village of Mesopotamos in the Prefecture of Preveza, Greece.
The Necromanteion was visited by those who wished to communicate with the souls who were in Hades as they believed that the souls who were liberated from the body could give oracles for the future.
It was located at the meeting point of the Acheron, Pyriphlegethon and Cocytus rivers which symbolized the grief of death. It was considered the most important sanctuary in honor of Hades and was the entrance to the underworld.
In the film we watch the tour of the filmmaker and a group of visitors in the ruins of this sanctuary. The film opens with the sacred room where the visitor offered libations (a ritual pouring of a liquid, or grains such as rice, as an offering to a deity or spirit, or in memory of the dead) and met the ghosts of the absent and above this room the filmmaker gives us shots from the church of St. John the Baptist (18th century AD) that was built on top of the Necromanteion.
Then he takes us to the bath where the visitors threw a votive stone to their right and washed their hands to exorcise the evil and subsequent the lens tries to penetrate into the Erebus’s mouth, the hidden sanctuary of Persephone and Hades where the pilgrims after the oracle remained enclosed for three more days before their symbolic return to the living.
Afterwards, we watch a series of counterweights and pulleys that, according to archaeologists, belong to a mechanism that revealed to the pilgrim the ghost of the dead.
The film closes with the departure of visitors from the sanctuary of the Nekromanteion.