About the book: 2022 / A new action-packed novel from the master of the "Russian bestseller" series, Marina Serova, about the work of private detective Tatyana Ivanova! Marina Serova is a phenomenon of the modern domestic detective genre. A graduate of the Law Faculty of Moscow State University, she worked in the Prosecutor General's Office. From 1987 to the present – ​​an employee of one of the special services. Participated in combat operations and operational activities. The author of a number of action-packed stories, the total circulation of which exceeds twenty million copies. This time Marina Serova presents a new product, “Hidden Murder” - an investigation by private detective Tatyana Ivanova. Angelika Dementieva addresses private detective Tatyana Ivanova. She is sure that her friend Tonya was killed, although the police did not find any crime. Tatyana feels that Angelica's friend could have been killed, and goes to Antonina's apartment to check her suspicions. She notices that not everything is so simple with the medicine that Antonina took daily, and she really could have been killed... It remains to understand who benefited from Tonya’s death.