It seems unnervingly accurate for anxious times.

As the baddies get nicer - or at least quieter - the plot slackens and Ragussis plods his way through a transparent three-act structure towards a less-than-thrilling denouement.

In the end, Imperium is fairly gripping entertainment that overcomes its faults. It brings nothing new to the table. But chalk up another unlikely win for Radcliffe.

A timely treatise that shines a harsh light on this nation’s deplorables and serves to remind discerning viewers that homegrown terrorism is no less a threat than the international brand.