Based on the wildly popular comic book series "Hellblazer" from DC Comics, seasoned demon hunter and master of the occult John Constantine is armed with a ferocious knowledge of the dark arts and a wickedly naughty wit. He fights the good fight - or at least he did. With his soul already damned to hell, he's decided to abandon his campaign against evil until a series of events thrusts him back into the fray, and he'll do whatever it takes to protect the innocent. With the balance of good and evil on the line‎, Constantine will use his skills to travel the country, find the supernatural terrors that threaten our world and send them back where they belong. After that, who knows... maybe there's hope for him and his soul after all.

When a novelist realizes her terrifying stories are coming true, she returns to her hometown to face the demons from her past that inspire her writing.

In a haunted Boston hospital called All Souls Hospital, Dr. Mitchell Grace's tries to find out the truth about the hauntings that dated as far back as the civil war. All Souls Hospital's lower levels used to be a mental asylum, and are haunted by ghosts of dead patients. The ghosts notably include Lazarus, an orderly who has been benevolently haunting the hospital since his days working with Dr. Ambrosius after the Civil War.