Breathe in the Air - S7.E2

Inspector Gently is intrigued as to why a woman has tragically committed suicide. There are too many details that don't add up, and he suspects murder. Why did this woman, a GP, want to end her life? Gently's investigation leads him and his team to the discovery of a bigger industrial crime, more murders and more victims. Gently puts his career on the line to uncover who is really to blame.