Narrated by Harry Treadaway, who stars as David Hunter in the Paramount Plus adaptation of The Chemistry of Death.

Recuperating from a near-fatal attack, forensic anthropologist David Hunter has returned to the renowned research facility where he first trained - the Body Farm in Tennessee. Still bearing physical and emotional scars, he hopes the trip will hone his old skills and restore his shattered confidence.

So when his former mentor invites him to assist on a murder investigation, he agrees. After all, he's simply there as an observer - what could possibly go wrong?

But even Hunter is unprepared by the gruesome nature of the killing. The victim has been bound and tortured, and the body has decomposed beyond recognition - far more so than it should have. Fingerprints at the scene appear to identify the killer; however Hunter is convinced that nothing is quite as it seems.

Then a second body is found, and suddenly the team are plunged into a nightmare of deception and misdirection, in pursuit of a macabre serial killer whose forensic knowledge seems disturbingly familiar. As the death toll rises and Hunter finds he has enemies even within the investigation, he begins to fear that they might be on the trail of a maniac who simply cannot be stopped...