K-PAX

A psychiatrist begins to question everything he knows when he is put to the test by a patient who believes he is not of this planet. A panel of doctors brought in to study him is baffled by his knowledge of an extraterrestrial planetary system he claims to be from. Things speed up when he reveals he must return home at a specific date and may take one person with him when he returns. With time running out the doctor tries to seek as many answers as he can find only to be met with more questions than answers