The Green Trail

Set in the USA, the plot concerns Thomas Norton, a researcher in the field of lie detection, who provides his services to courts and private industry. One day he idly attaches electrodes to a plant in his office, and is surprised to find it responds with recognisable emotional reactions to the stimuli he gives it. He pursues this research, and keeps a plant wired up in his lab. When a woman who lives in his building is mysteriously murdered in his lab, the plant is the only witness to the crime.

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First Aired

Dec 21, 1975

Last Aired

Jan 4, 1976

Episode Runtime

1h 0m

Network

Rai 1

Original Name

La traccia verde

Country

IT