Alan Mangel has it all. As a popular professor at the world-famous Université de La Sorbonne, he is wealthy, married, and academically acclaimed. On his sixtieth birthday, however, his life crumbles as a beautiful young student claims she has received a holy vision that Mangel is to impregnate her with the second coming of John the Baptist. Thus begins a wild existential and spiritual journey that challenges Mangel's very reality when everything once true is proved to be false, while everything once false is proved to be true.