Busier

In Tunguso-Manchurian mythology, the souls of people who died an unnatural death. 

Envious of people, they hunt for the living, lie in wait for them at the graves (where they gnaw the bones of corpses), climb into houses and, waiting for night, attack the sleepers, suck their blood or brain, peck out their eyes. Having taken possession of a person, busieh brings him to complete exhaustion.