Investigative reporter Louise Shorter re-visits some of the greatest miscarriages of justice in British criminal history. Cases where lives were destroyed when individuals were wrongly accused of murders they did not commit. During the series, Shorter meets the wrongly accused, family members, and those close to the case. First, the original investigation which led to the innocent being accused is examined, and then Shorter investigates the evidence that eventually caught the real murderer - looking at the mistakes made and the consequences of a killer walking free. In doing so, she reveals the tipping point moments when justice failed and how the wrongs of the law were eventually righted to put the real killer behind bars.