From BAFTA-winning writer Lynda La Plante comes six brand new episodes.

THE LOVERS A young couple is on their honeymoon in London when the husband mysteriously disappears. The police consider it a missing person’s case until the bride’s father takes his case to the Commander and Walker is called in. When the bride also vanishes in search of her husband, the evidence of CCTV cameras become crucial in a heart-stopping race against time and terror.

SINS OF THE FATHER Young Emily Harrogate the clever daughter of an apparently happily married couple is found dead in the family home, the morning after a night out clubbing. But appearances are deceptive as the police investigation uncovers a house full of secrets and lies. Any one of them could lead to the true killer - and does – but will justice be done?

CLOSURE A teenage schoolgirl has been raped and murdered and two months on, DCI Connor still has no witness, suspect, or leads. When Chief Superintendent Walker orders a trawl through unsolved cases, the team discovers three more schoolgirls murdered in similar circumstances over the last ten years. Connor calls in a criminal profiler to help track down what looks like a serial killer – but can he do it? Episodes in this collection are: The Lovers, Sins of the Father and Closure.