The Poisoner's Handbook (2014)

In 1918, when New York City hired its first scientifically trained medical examiner Charles Norris. Over the course of a decade and a half, Norris and his extraordinarily driven and talented chief toxicologist, Alexander Gettler, would turn forensic chemistry into a formidable science, sending many a murderer to the electric chair and setting the standards that the rest of the country would ultimately adopt.

Unfortunately the movie The Poisoner's Handbook is not yet available on HBO Max.