Filmed in English and Russian. Petersburg at the end of the 19th century was embraced by a massive enthusiasm for the occult sciences and esotericism. British medium Olivia Reed arrives in the capital of the Russian Empire on tour and gathers crowds of people at her public spiritualistic sessions. At this time, a series of ritual mysterious murders takes place in the city. Suspicion leads Investigators to Olivia, and he decides to turn to her in the hope that her genuine or imaginary ability to summon the spirits of the dead can help to get on the trail of the killer.