As this gripping four-part series opens, tough Manchester cop Helen Weeks (Ripper Street’s MyAnna Buring) has a surprise for partner Paul, a fellow cop – she’s pregnant.

No sooner has she told him than her world is shaken even further by a news report that two teenage girls have gone missing from Polesford, her Derbyshire home town – and the husband of her childhood best friend Linda (a hypnotic Emma Fryer) is the main suspect.

Manoeuvring herself into the investigation, Helen returns home – but the girls’ disappearance is not the town’s only mystery… Absorbing, with a great cast – look out for Peep Show’s Matt King as a stylish pathologist.