The Russian crime-detective series "Deadly Training" tells the story of the thrilling adventures of Nadezhda Mitrofanova and Dmitry Poluyanov. The focus is on a young couple, Nadya and Dima, who have been living together for a long time. However, Nadya suddenly discovers that her partner doesn't take their relationship seriously. Outraged, our heroine decides to attend a popular psychological training instead of her sick colleague. The plot is based on the work of Anna and Sergey Litvinov.