Why do some people crave chocolate? Why does music make some people cry at the movies? How did kissing begin? Mystery of the Senses, a five-part NOVA special airing over four consecutive nights, seeks answers to these and other questions as it explores the complexities of smell, taste, touch, hearing, and vision. In this exploration, series host and naturalist Diane Ackerman travels around the world to investigate the science, history, and cultural values that influence our senses.