Surveillance is the game here. But a break-in ends up with the night watchman dead of a heart attack. Tom Selleck although not in the opening credits, he plays a major role. During the lunch scene they are eating at Sinbad's Resturant at Pier 2 in San Francisco, which is still there even today. I had my wedding reception there in 1984, great place. Written by
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Star Trek DS9 fans can see Andrew Robinson in human form. Quite different from the Cardassian tailor on DS9. See more
At about 17 minutes in a close up view of the bugging device shows a circuit board with a small microphone a coil, a capacitor and a few resistors but no active components like transistors or integrated circuits. Plus there is no battery or a place to put one. This device could not possibly transmit, let alone the 1/4 mile range stated. See more