Superintendent Jane Tennison (Helen Mirren) is on loan replacing DCI Raymond for a murder case. The victim Denis Carradine lived with his elderly mother. The investigation starts as a robbery with sexual overtones but it gets more and more complicated. The prime suspects start with drug-addicted Sheila Bower and low-life Micky Thomas. Maria Henry runs the nursing home and her daughter Polly Henry (Kelly Reilly) is connected to Micky Thomas who was chased into traffic by the cops and killed. As she digs deeper, Tennison uncovers class divisions, corruption within the local police and government.
This is Helen Mirren on her own. What I mean is that the actors are either not good enough or their characters are not good enough. It's missing a second compelling character either in support or in opposition. None of the villains of the piece are that scary. It's a bunch of weaselly old white people scheming about money. Whenever they gather to talk about the situation, the movie slows down a little. The most compelling support character is probably DS Cromwell but actress Sophie Stanton is still a newbie at that point. It's also an early one for Kelly Reilly. It still has primetime Helen Mirren who keeps the train moving. It's a functional police TV drama.