Synopsis by Hal Erickson
James Coburn guest stars as Cyrus Ramsey, chief archaeologist of the National Museum of Mexico. Ramsey is among those under suspicion when a hotel owner suspected of dealing in stolen art is murdered. It seems that the dead man was found wearing the Mask of Montezuma, which had recently been pilfered from the museum. Need we add that Jessica (Angela Lansbury) is paying a visit to Mexico City at the time of the murder, and that she will take it upon herself to solve the mystery?