The small Belgian town of Creux is hit by strange events. People seem to be slowly becoming invisible under mysterious circumstances and are now walking among the locals.
Lily tends to her grandfather Viktor and notices that he invites a woman named Angèle to come in. When the woman suddenly disappears before her eyes, Lily gets scared.
Lily learns that Angèle is behind the incident that occurred during her grandfather's operation. Her escape attempt fails and Lily finds herself at the mercy of Angèle.
Ayoub is running out of time as the invisibility continues to spread. So he decides to act. Nathan tries to find the source of the invisibility in the hospital, Lily remains missing.
The phenomenon continues to spread and more and more people are becoming invisible. Doctor Nathan Denayer tries to get the situation under control before panic sets in.