The Russian detective series "The Secretary" tells the story of a woman named Katerina Morozova. She works as a secretary in the Investigative Committee and is truly an indispensable employee. Katerina has many acquaintances who can get anyone talking and often assist her in investigations. Katerina's son, Oleg, also serves in law enforcement. Katerina is not married, but has been in a relationship with the lawyer Evgeny Khristov for many years. However, their relationship has not been smooth sailing for a long time...