If not for food-, sleep- and toilet breaks I almost read this in one go. Harrowing and layered story that gives a surprising entanglement of characters.
Even days after finishing I still had ah-ha moments when I suddenly understood how and why some things happened and who was connected to whom.
Wish there was a sequel where you learn more about the characters. Some parts are eerily recognizable now we had a real pandemic.
Mind you; the book is not sci-fi! It is our world after a pandemic; no fancy, crazy tech is used or invented in the book.
