The episode centers on a young boy whose demonic possession is a problem for Constantine in part because his parents appear unwilling to believe it or allow him to be exorcised.
You can check out the teaser and synopsis below.
A MURDEROUS SPIRIT TAKES HOLD OF A YOUNG BOY
When a young boy is taken over by a malevolent spirit, John (Matt Ryan) must put aside his misgivings over exorcising a child and convince the parents that their boy is not all that he seems. Charles Halford and Harold Perrineau also star. Laura Regan, Max Charles and Niall Matter guest star.