Nanautzin, an Aztec god, needs to be sated every 52 years with five human sacrifices. In 1975 it was up to Carl Kolchak to end the cycle of violence by stopping the final sacrifice of Pepe (Erik Estrada).

Chris Stachiw and Mike White also discuss the bizarre mash-up of "Legacy of Terror" and "Demon in Lace" called "The Demon and the Mummy" which unsuccessfully marries the two episodes.