Day of the Triffids (1963) starring Howard Keel, Nicole Maurey

The Day of the Triffids is a famous science fiction horror tale. Triffids are tall, carnivorous, mobile plants capable of aggressive and seemingly intelligent behavior. They are able to move about by “walking” on their roots. Triffids appear to communicate with each other. And they have a deadly whip-like poisonous sting that enables them to kill their victims …. And feed on their rotting carcasses.