We love how Endeavour paid homage to Inspector Morse while being a classy drama in its own right, and this much-anticipated Prime Suspect prequel looks set to repeat that success.

Stefanie Martini is excellent as the young Jane Tennison, who ignores the fact that she is merely a humble probationary WPC and gets stuck into the case of a murdered prostitute.

We reckon Helen Mirren will be proud to see the lovely little glimmers of the hard-nosed, brilliant detective that Tennison becomes.

The clever period detail is sure to bring a whiff of nostalgia, and look out for a great turn from Alun Armstrong as a prison inmate.