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抗生素是抑制细菌生长或杀死细菌的药物类别。抗生素拯救了亿万人的生命，但滥用抗生素也将造成危险后果。Angela Rippon讲述抗生素的历史和应用，以及科学家寻找替代药物的努力。。Johnny "Skidmark" Scardino is a free-lance crime-scene photographer and part-time blackmailer. When his associates begin to turn up murdered, he has a very short time to discover the killer before it is his turn.。