Documentary following a team of experts as they investigate whether evidence exists that could challenge the conviction of a man in prison for a murder he denies. Every year, over 500 people in the UK are convicted of murder. A guilty verdict can only be challenged if new evidence comes to light - and less than 1% of cases are ever overturned. Inside Justice is a specialist charity led by Louise Shorter, supported by a panel of criminal lawyers, ex-police officers and forensics experts who offer assistance to prisoners who are protesting their innocence.