The grey area between life and death is a place few people get to visit and return from. Henry Peters, a Native American widower and chronic pain sufferer does just that when a crooked scientist, Dr. Sterling who is in trouble with a loan shark, tricks him into testing an unapproved drug for chronic pain. During the drug trial he dreams that he's gone back in time and finds his deceased wife living in a native village.

Once Henry awakens and is cured of his pain he begins to hallucinate, seeing his dead wife everywhere. Out of desperation he breaks into the lab and steals more of the medicine. Meanwhile, Dr. Sterling has given the loan shark a stake in his company for repayment of his debt. When he discovers that Henry is ill and on the rampage with more medicine, he has no choice but to kill him before the police find him or the loan shark finds out the medicine doesn't work and tries to kill the good doctor. Suddenly, many lives are in the grey area...