In 1990s Łódź, Poland, the story of “skin hunters” begins as morticians and emergency workers work out a system to trade data on deaths for money.

After a new doctor becomes director in the emergency department, he notices an alarmingly excessive use of a powerful muscle relaxant. As he teams up with trusted staff for an internal investigation, journalists are conducting their own at the same time.

Over a decade, "skin trading" grows into a full-blown information system that draws in more doctors, paramedics and funeral-home owners.

2002. An explosive investigative article on the skin hunters puts pressure on local law enforcement. But as they hit a wall in finding evidence that victims were killed, one paramedic's chilling testimony emerges.