 Kolchak faces another Native American monster, this one known as the Matchemonedo, when he learns of a series of mishaps taking place in a newly opened hospital. The construction of the hospital has awakened Matchemonedo, an invisible manifestation that causes ruptures in the building s constitution, electrical outbursts, and deaths that are seemingly caused by electrocution. Kolchak enlists the help of a reluctant Indian shaman to combat the rampaging force.