Professor Kant's Incredible Day

What can I know? What should I do? What may I hope? What's for dinner? More than two hundred years ago, on a day that takes quite a peculiar course, Professor Kant is working hard to give an answer to all these questions. Not only the morning papers, but also a slightly perfumed letter get in his way however. As a result, he even forgets to go out on his regular digestive walk - and everything goes off the rails...