For centuries and centuries they live next to us - people who have perfectly comprehended the terrible, bloody, ancient art of black magic... For centuries and centuries they bring us death - and, like dark shadows, they disappear in the night. Centuries and centuries are found on the streets tortured human bodies - and no one can guess how close to the victims stand - unrecognized, unknown - killers. Who will stop Death? Who will stop Evil? Who - the only one on earth - will hear the silent and murderous EXIT PRAYER?..