25 years have passed since Arlene Fraser went missing and her killer could be out of jail soon. But Arlene's family still don't know where she is.

Arlene's sister explains how she is campaigning for a change in the law to ensure Arlene's killer can never leave jail - unless he says where her body is buried.

As doubts emerge about some of the evidence used to jail the killer, the courts are left with no choice but to let him go.

As he returns home, all hell breaks loose, with bar brawls and bouncers getting between warring factions.

Will Arlene’s killer ever be brought to justice?

Episode 6 will be released on Monday, December 11.

Investigative journalist Dale Haslam, who spoke to Arlene's friends, family, and those who brought her killer to justice, answers your questions about the case.

Read all the questions and answers here.

Frustrated by a lack of progress, detectives turn to a lipreader in an attempt to build evidence - and strike gold.

It is enough to build a case against a key suspect, convince his friends to testify against him - all leading up to a dramatic court showdown.

Episode 5 will be released on Monday, December 4.

Introducing Vanished: A new 6-part true crime podcast series from Impact Podcasts and the DC Thomson title The Press and Journal.

Six months have passed and there is still no clear lead in the case - and Arlene Fraser is still missing.

But a new team of detectives dubbed 'the A team' arrive on the scene and make a breakthrough. Police make a key arrest - and use leverage to launch an undercover operation in a bid to snare a suspect.

Episode 4 will be released on Monday, November 27.

A crack team of detectives arrives in Elgin to investigate Arlene Fraser's disappearance - and they quickly begin to suspect her husband of foul play after a suspicious phone call.

But he tries every trick in the book to the throw police off the scent - and officers are perplexed by his cast-iron alibi.

How does someone just vanish?

In 1998, Arlene suddenly disappears from her home in the north-east of Scotland - and she was previously known to police as a victim of domestic abuse at the hands of her husband, Nat Fraser.

Investigative journalist Dale Haslam travels to Elgin to investigate.