The TV series "Friday Murders" is a Russian crime detective story. The main character, Nina, works in a botanical garden. One day, she receives an interesting offer to take care of a park in an old estate. Enthusiastically, she agrees. However, it soon becomes apparent that the young owner of the house, Andrey, is in great danger. Someone is systematically eliminating his relatives, one by one, who are descendants of a noble family. What's more, all the crimes occur on Fridays.