NetFlix原创法语剧集，连环谋杀案凶手要帮忙侦破凶杀案，前提是当警察的儿子要帮助她。

Paris, present days. Police faces with a psychopath whose murders are inspired by Jeanne Deber, known as « The Mantis », a famous serial killer who terrorised the country 20 years ago. Initiated by Jeanne, and believing it takes one to know one, the Police asks her to help hunt her copycat. Placed in solitary confinement since her arrest, "The Mantis" agrees at one condition: to deal only with detective Damien Carrot, who happens to be her son and who has broken ties with her mother a long time ago - Damien has no choice. A serial killer is on the loose and could strike anytime, anywhere in Paris.