This is an excellent TV series that clearly inspired The X-Files with its secret government paranormal unit, claustrophobic atmosphere of distrust, sexual tension between the male and female leads, and clandestine testing by the military on the unfortunate public. There's even a gifted boy who becomes a pawn and potential weapon, a la Gibson Praise. Although episodic in nature, across the series there are allusions to a higher authority within government, the shadowy Omega group, and with each episode the plot thickens. It's all delivered with a sort of downtrodden gloom that only BBC Scotland can deliver and feels distinctly British, with echoes of spy thrillers and Hammer horrors resonating through the screen.
Naturally, some episodes are stronger than others as Tom Crane investigates various paranormal goings-on, but they are mostly pretty gripping and I was completely absorbed by the overarching story, ripping through the whole series in a few days. Unlike The X-Files, it is all brought to a dramatic, logical and satisfying conclusion in the final episode, with the writers also opening further doors on an even greater conspiracy. The fact that no second series was made is a huge disappointment.