In 1986, Diane Sindall leaves work to drive home but never arrives. What happened that night marks the start of a decades long unsolved case.

Through testimony from those who knew her and those who encountered the crime scene, we look at Diane’s final movements, the violent nature of her attack and the growing fear gripping Birkenhead, a town on the Wirral in Merseyside.

As we find out more, troubling questions emerge about how such brutality could occur in a public place unseen and unheard, setting the stage for what would become one of Britain’s most haunting criminal cases.

Presenter: Olivia Graham. Producers: Kate Bissell, Gemma Maull and Olivia Graham. Sound Design and Music Composition: Phil Channell. Mixing: Ivan Eastley. Story Consultants: Neil McCarthy, Jack Kibble-White and Kirsty Williams. Online Producer: Rachael Smith. Development was by BBC Audio Scotland and BBC Merseyside. Executive Editors: Gillian Wheelan and Ben Anderson. Commissioning Editor: Alistair Miskin.

There’s graphic descriptions of violence in this series. For details of help and support in the UK, visit bbc.co.uk/actionline.

The murder of Diane Sindall in Birkenhead, Merseyside led to Britain’s longest miscarriage of justice when local man Peter Sullivan's conviction collapsed after 38 years.

This series returns to the streets, alleyways and estates of Birkenhead where it all happened, retracing Diane’s final movements.

Follow through eyewitness testimony, unheard accounts and modern forensic science as we uncover how a brutal crime in a public place went unsolved for decades, while a killer may still be alive and closer to home than anyone realised.

At the heart of this story is Diane: who she was, how violence against women shaped the investigation and what justice really looks like when a community has lived with fear, silence and unanswered questions for generations.

Presenter: Olivia Graham. Producers: Kate Bissell, Gemma Maull and Olivia Graham. Sound Design and Music Composition: Phil Channell. Mixing: Ivan Eastley. Story Consultants: Neil McCarthy, Jack Kibble-White and Kirsty Williams. Online Producer: Rachael Smith. Development was by BBC Audio Scotland and BBC Merseyside. Executive Editors: Gillian Wheelan and Ben Anderson. Commissioning Editor: Alistair Miskin.

There’s graphic descriptions of violence in this series. For details of help and support in the UK, visit bbc.co.uk/actionline.

With the crime apparently solved, one unanswered question continues to hang over the village - and everyone connected to the case - a quarter of a century on.

Presenter: Meic Parry Story Producer: Andrew Dickson Assistant Producer: Katie Hill Executive Producer: Leonie Thomas Production Management: Amy Wheel and Janice Jardine Pre-production research: Jess Gunasekara Legal advice: Clare Hoban. Music: Cerys Hafana Mixing and Sound Design: Mike Woolley Series Producer: Steven Rajam

An Overcoat Media production for BBC Sounds

As journalists get a first glimpse of the accused in court, they face strict secrecy around reporting his identity. Meanwhile, detectives face a reckoning – will the case hold up?

Presenter: Meic Parry Story Producer: Andrew Dickson Assistant Producer: Katie Hill Executive Producer: Leonie Thomas Production Management: Amy Wheel and Janice Jardine Music: Cerys Hafana Mixing and Sound Design: Mike Woolley Series Producer: Steven Rajam

An Overcoat Media production for BBC Sounds

With a prime suspect no-one ever expected, detectives race against time to uncover the truth behind his unassuming appearance – and secure the evidence that could prove his guilt.

Presenter: Meic Parry Story Producer: Andrew Dickson Assistant Producer: Katie Hill Executive Producer: Leonie Thomas Production Management: Amy Wheel and Janice Jardine Music: Cerys Hafana Mixing and Sound Design: Mike Woolley Series Producer: Steven Rajam

An Overcoat Media production for BBC Sounds

As police make an appeal for information on primetime TV, a phone call promises to unlock the entire case. The tip-off leads detectives somewhere they could have never expected.

Presenter: Meic Parry Story Producer: Andrew Dickson Assistant Producer: Katie Hill Executive Producer: Leonie Thomas Production Management: Amy Wheel and Janice Jardine Music: Cerys Hafana Mixing and Sound Design: Mike Woolley Series Producer: Steven Rajam

An Overcoat Media production for BBC Sounds

As Christmas approaches, the village is left reeling by a new death in their midst. As the rumour mill goes into overdrive, a ghostly piece of evidence appears before police eyes.

Presenter: Meic Parry Story Producer: Andrew Dickson Assistant Producer: Katie Hill Executive Producer: Leonie Thomas Production Management: Amy Wheel and Janice Jardine Music: Cerys Hafana Mixing and Sound Design: Mike Woolley Series Producer: Steven Rajam

An Overcoat Media production for BBC Sounds

Fear spreads as the village realises what might be walking among them.

Presenter: Meic Parry Story Producer: Andrew Dickson Assistant Producer: Katie Hill Executive Producer: Leonie Thomas Production Management: Amy Wheel and Janice Jardine Music: Cerys Hafana Mixing and Sound Design: Mike Woolley Series Producer: Steven Rajam

An Overcoat Media production for BBC Sounds

An elderly woman is murdered in her own living room – and nothing about it makes sense.

In the days after Mabel’s murder, fear takes hold as the village wonders if something uncanny is still among them. Then, just metres from the crime scene, there’s a shocking turn.

Presenter: Meic Parry Story Producer: Andrew Dickson Assistant Producer: Katie Hill Executive Producer: Leonie Thomas Production Management: Amy Wheel and Janice Jardine Music: Cerys Hafana Mixing and Sound Design: Mike Woolley Series Producer: Steven Rajam

An Overcoat Media production for BBC Sounds

How a brutal, occult-tinged murder shook a Welsh village to its core.

The family of Tony Parsons waited three years for answers on what happened to him. Now they face a longer wait - for justice. Prosecutors face a difficult decision - is this simply a case of dangerous driving? Or could the suspects face trial for murder? This episode includes exclusive access to the prosecutor tasked with making that decision, as well as advocates for the defence, as the case reaches the end game.

Presented by Jane MacSorley. Produced by Firecrest Films.