The whole business of subliminal suggestion was big when I was starting in the business world. For whatever reason, the practice was made illegal and commercial enterprises had to stop doing it. I think Coca Cola was a part of it, but I am only guessing. Here, Robert Culp is a master of controlling the thoughts of people for salesmanship. He uses whatever works. When one of his biggest financial supporters starts to bring down the hammer, Culp shoots him, and then uses technology to cover things up. Columbo, as he often does, educates himself and then turns the tables on the perpetrator. I liked this one because we were made privy to the sophistication of the murder plot.
Review of Double Exposure
