 At this point Jean Martel (Donald Woods), a young doctor who was formerly Charbonnet's assistant but now is a follower of Pasteur, becomes engaged to Pasteur's daughter Annette (Anita Louise).The celebrations are short-lived, as a rabid dog runs through the town and a man is bitten.As a woman attempts to cure him by witchcraft, Pasteur laments that doctors would have no more chance of success.