A compelling contemporary series, which uses a unique blend of crime mystery, science and detection. Forensic pathologist Dr. Sam Ryan has an all-embracing, passionate notion of justice, which quite often does not accord with the police's objective of getting a conviction. This can lead to trouble, both in her personal and professional lives, but to Sam, each dead body deserves nothing but the truth. This series tackles child murder, ritual killing, a murder in the police cells and an arranged marriage, which leads Sam to confront her own demons.
When Leo's friend commits suicide, Harry and Nikki are called to the scene of a violent and calculated murder, which is thought to be the work of an apparently dormant serial killer.
Harry and DI James deviate from the original investigation to secretly test DNA evidence from the rival Chesham laboratory to try to solve this stalled case.