Angels and Ministers of Grace

"Angels and Ministers of Grace" is the twelfth episode of Constantine. It aired on February 6, 2015.

Synopsis
John forces an unwitting Manny to help him stop an ancient, murderous evil in a hospital.

Behind the scenes

 * The title is taken from William Shakespeare's Hamlet, Act I Scene IV; "Angels and ministers of grace defend us!" is Hamlet's exclamation upon first sighting the ghost of his father.