EP 1Damning evidence reveals drug lab chemist Sonja Farak's addictions. A scandal erupts, raising questions for the thousands of defendants in her cases.
EP 2Top state lab chemist Annie Dookhan falls from grace over brazen misconduct and unsettling emails with prosecutors. Farak's trial begins.
EP 3Farak's disturbing confessions lay bare a broken system. Dookhan takes the fall in court, but suspicions of a high-level cover-up grow louder.
EP 4The ACLU and dogged defense lawyers fight for justice in the tainted cases as officials and the public absorb the fallout's staggering scale.
The four-part docuseries revolves around Amherst, Massachusetts, drug lab chemist Sonja Farak who became addicted to the narcotics she was supposed to be testing. In covering her tracks, Farak falsified thousands of results and opened the door to overturning hundreds of wrongful convictions.
