They say the truth: habit is second nature! Ivan Podushkin hasn’t worked as secretary for business lady Eleonora for a long time, but he runs to her at her first call. Of course, Nora needs his services again as a private detective—this time Ludmila Vinivitina-Belskaya turned to him and asked to investigate the death of her father. Officially he died of a heart attack, but some facts led the older daughter to suspect that the father’s second family had a hand in his death. So Ivan Pavlovich had to try on the role of butler in a noble household! In fact, the Vinivitin-Belskys are not nobles at all—this legend was invented by Ludmila’s great-grandfather, and ever since, the crafty family has been able to use it. But why did Ivan suddenly see, with his own eyes, the ghost of a killer dog that Lyuda’s father invented to lure tourists to the manor?