What makes days sleepless? If you are waking at the day, why should you worry that you don`t sleep at the time? Or are you some nasty pervert who works at night but still can`t sleep at day? This novel tells us about a teacher named Simrock who suddenly feels some pain in the heart while he`s teaching his students at school. When he comes home and tells it to his wife Ruth, she doesn`t treat that as a big problem. After that he decides that he has been living his life in the wrong way (btw., he`s a partly orthodox communist in East Germany). He leaves his wife having realised that there`s no love left between them - only routine is left. After that he finds himself a brand new lover Antonia. While he has his summer vacation he takes a job at a bread factory and even finds a friend there. Together with Antonia he goes to Hungary, from which she tries to flee to Austria, but unsuccessfuly. The book left a good impression on me, it was interesting to read and even had some nice ideas in it.