Who is Dr. John Franklin from Curtain and what is their importance?

Dr. John Franklin is described as tall, gangly, and clumsy. It is important to note, however, that he is also a brilliant scientist. Franklin's work is important to him, and sadly, he seems to be indifferent to his wife and her illness. When his wife dies, Franklin seems to be relieved. Her death also allows him to accept a job in Africa.