Heaven's Messenger

A man who calls himself P.J., has witnessed a horrific accident and subsequently retreats within himself. He barely talks; he doesn't know who he is. He is brought to a hospital where the resident doctor tries to get through to him with the help of his assistant, and P.J.'s bitter ex-girlfriend. All the while, the doctor is fighting his own crisis, and an out-of-touch supervisor who wants P.J. permanently committed.