After the seemingly random murder of a civil servant, Inspector Erskine (Efrem Zimbalist Jr.) follows the trail of clues to a Communist-funded news service based in Mexico City. What follows is a maelstrom of intrigue involving a possible defector, an eccentric collector of antiques, and a "mole" planted in the American Embassy in Vienna. The acting honors in this episode are won hands-down by the magnificent
Viveca Lindfors. ~ Hal Erickson, All Movie Guide