Silly little procedural with an arc plot of the very obviously made up as it goes along variety. It is always a bit fun to see what they’ll do next in this kind of show and unlike most of them it has Michael Emerson who is always a delight as a villain.

It does occasionally—Exorcism Part 2 in particular—slap you in the face with the fact that you are watching a procedural where the characters are working for an even more evil organisation than the police: The Catholic Church.