Agniya Smolskaya, who works in the Department of Medical Investigations, receives information about a boy found in a café and taken to one of the city hospitals. His parents stated that their son was kidnapped three months ago. After examining the boy and his father and mother, Agniya and her colleagues make a shocking discovery—he can’t be their son. The couple had no suspicions: yes, they used IVF, but they were sure they were raising their own child! The traces of this tangled story lead to one private clinic. There they successfully helped people who couldn’t have a child in any way—yet it seems their work wasn’t limited to that… Intriguing, unusual detectives from the world of exact sciences. The scientific world keeps its secrets. Even the quietest lab mouse may possess deadly knowledge and a devilish temper. But this world is also home to smart, desperate, decisive characters—like the heroines of the “Office Detective” series!