Friday evening, December 1st, promised a fun event, but unexpectedly entailed a series of confusing and unpleasant events. It all started when Irina, rushing with a cake to the festive table, fell on a man whom she tried to overtake on a narrow footpath. The fall was not accidental - the man was shot. As a result, a stranger’s folder ends up in Irina’s hands, and its contents deprive the woman of a quiet life. Fear for her loved ones, as well as the habit of poking her nose into someone else’s business, forces Irina and her friend Natalya to conduct their own investigation...