A historical spy-thriller set in 1939 about an Estonian intelligence agent tasked with uncovering the Soviet double agent in their ranks.

Melchior’s bride Keterlyn happens to witness an attack on a young man. The victim, who has lost his memory, does not know who he is and how he ended up in a Tallinn. A ring found at the scene leads Melchior to the trail of the nocturnal brotherhood, questions are also raised by the troupe of freaks who performed on fair day. Ominous signs suggest that not only is the stranger recovering from a murder attempt at risk, but Melchior and Keterlyn as well. At the same time, an inquisitor known as a ruthless witch hunter arrives in town. Melchior's ability to "speak to the dead" and to notice invisible traces of murder have raised the suspicion that he may be a dangerous heretic. And the place of the enemy of the church is at the stake…