"The invaders" is the last great 1960's series and it is inspired by the "Invasion of the body snatchers" concept of conspiracy : science fiction + horror + reality = the fear of the unknown. One of the best show produced by Quinn Martin, including "The untouchables" and "The fugitive". Among the best episode, "The innocent" sums up the paranoiac symptoms at its best when Michael Rennie brainwashes Roy Thinnes in his flying saucer. According to me, the David Vincent character is a blend of Cary Grant, from "North by northwest", and Kevin Mc Carthy, from "Invasion of the body snatchers" : the innocent witness who becomes the new Cassandra, alone against everybody ! The pessimistic message of the series is equivocal : the world is corrupted by the authorities (officials, politicians, army, C.I.A., mafia) or the world is dominated by a claustrophobic mass conformism or the world is on the verge of being overthrown by the emotionless Soviet Union agents (blue collar workers who manufacture weapons and torture to get informations in hidden factories, and businessmen who infiltrate the power and whose bodies turn red when they die). Who knows ? The aesthetic of the show also adds more terror to the stories (the Wayne Fitzgerald expressionist title credits, the dead-serious tone of William Conrad's narration that gives you a cold warning at the beginning and the end of each episode, the Dominic Frontiere's suffocating music and the distorted cinematography). The best brainwashing episodes are : "The experiment", "The leeches", "The innocent", "The dark outpost", "The possessed" and "The pit". One of my all-time favourite tv show (with "The twilight zone", "The outer limits", "The wild wild west", "The time tunnel" and "Mission : impossible"). A word to the wise, don't watch the worthless new series aka "The impostors", you know what I mean. "The nightmare has already begun," and will never end, Mr. Vincent !