Cornelia wakes up in a remote manor house with no memory of how she got there or what she's doing there. When she walks around the old house, she meets Alex and 10 other girls in the same situation.
The group quickly splits into two camps. Alex and her group want to assist the sick, while Cornelia's group believes it's a hoax. The latter refuses to perform the tests and start looking for a way to get out.
Alex demonstrates that she is prepared to punish those who break the rules, and the atmosphere in the house becomes very hostile. Cornelia attempts to stay calm and keep a low profile.
Several of the girls in the house display symptoms of viral infection. Everyone understands that the virus has gotten through the quarantine on the outside and made it into the house.
