Despite all the experts confirming the authenticity of the racist video that ruined the political career of her mother Françoise, Stéphanie is still convinced that it's a deepfake.

Doubts persist about Françoise's health and the authenticity of the video. Now employed by EFEK, Stéphanie tries to convince Manu to produce a hyper-realistic avatar which could arouse suspicion.

Stéphanie becomes more and more assured in her undercover work, even if her plan to get Manu to produce an undetectable deepfake risks exposing her.

Stéphanie believes she's on the verge of proving that EFEK is making undetectable deepfakes, when her infiltration is compromised. Pressure mounts to hide the truth about Daji Saeed.

Stéphanie is having difficulty cutting ties with Manu and doesn't suspect that she's a target for elimination. The countdown accelerates for the EFEK team, which is failing in its mission.

Drawn into a dangerous conspiracy with international repercussions, Stéphanie discovers that the truth isn't what she thought, and that perfect lies come at a high price.