A group of survivors are trying to save their friend, Lera, who was bitten by a zombie. They are searching for a doctor, Stasik, who might be able to help Lera. The group is navigating through a post-apocalyptic city, avoiding zombies and searching for clues that might lead them to Stasik. Along the way, they discover a warehouse where Stasik had been hiding, but she is no longer there. They find a flash drive with a recording of Stasik's diary, which reveals that she has moved to a landfill on the outskirts of the city. The group decides to head to the landfill to search for Stasik, and one of their members, Andrey, who was previously thought to be unable to communicate, reveals that he can talk and knows the location of the landfill.
Here are the key facts extracted from the text:
1. Lera is very ill and has almost stopped waking up.
2. Lera has been bitten by a zombie.
3. The group is trying to find a doctor named Stasik to help Lera.
4. Stasik is believed to be alive and is being tracked by the group.
5. The group found a warehouse where Stasik may have been hiding.
6. Inside the warehouse, they found a camera, sleeping bags, and pills.
7. Stasik left a flash drive with a video message.
8. In the video message, Stasik says she is heading to a landfill on the outskirts of the city.
9. The group is trying to find the landfill to locate Stasik.
10. Andrey, a group member, knows the location of the landfill and offers to lead the group there.
11. The landfill is located behind a McDonald's restaurant.
12. Andrey was previously thought to be illiterate and deaf, but is revealed to be able to speak and write.
13. The group is trying to find Stasik to get help for Lera, who is dying.