An epidemic looms. Anne-Marie Leclerc, director of the Emergency Public Health Laboratory, must deal with an outbreak, an overzealous cabinet minister, and a media storm. To top it off, she discovers that her husband has been deceiving her. All this is trivial compared to what’s in store...

Cases of COVA are multiplying; enforced home quarantines number in the hundreds. Anne-Marie redoubles her efforts to contain the epidemic and limit deaths. Confined to her home, Geneviève hides her symptoms. She has one wish – to be near her hospitalized son – even if that means breaking the rules.