What is engrenages?

Engrenages is a French television crime-drama series, also known as Spiral in English-speaking countries. It focuses on the lives and work of police officers and judges in Paris as they investigate crimes and deal with the complexities of the French justice system. The series premiered in 2005 and has since aired eight seasons, with a ninth and final season expected to air in 2021. Engrenages has gained critical acclaim for its realistic portrayal of the French justice system and complex characters, and has been lauded as one of the best crime dramas of all time.