All sorts of strange events happen to the head of the Snow White dental clinic, Yana Tsvetkova, almost every day, often even with a criminal twist. Yana is an extremely sociable person, she tries hard to help everyone and be useful to everyone, sticks her nose into other people’s affairs and constantly gets involved in the most incredible stories. And now a quiet and inconspicuous old woman, a neighbor in the stairwell, has died. Yana could not help but be there at the most inopportune moment - and a whole series of strange coincidences began that turned the fate of our heroine and her best friends upside down...