Everyone has heard of Jack the Ripper, but few know of Dr. Krim, whose crimes were no less brutal. This book is about a serial killer who preyed on women in London, Chicago and Canada more than 100 years ago. Dr. Krim's behavior seemed strange to everyone: he spoke with hatred about women, was obsessed with poisons, willingly showed everyone photos with naked girls, and at the same time was extremely wary of people. The fact that no one initially suspected him of committing a series of terrible crimes testifies to the unconditional trust of people in doctors, as well as the failure of investigative methods. Then the term "serial killer" did not yet exist, and Krim laid the foundation for a new "breed" of criminals who, as it seemed by mistake, acted without motive and ""killed only for the sake of murder." Dr. Krim was repeatedly arrested and interrogated, but then released again. Not afraid of punishment, he continued to plan new atrocities...