Tanya Sergeeva is in shock - she has never even had a cat, but she needs to relieve stress in a dwarf rabbit the size of a bear! These are her new duties as a zoopsychologist: the traces of the missing girl, whom Tatyana was looking for, led to the mansion of businessman Herman Knabe, so she got a job there in this original position. But now Tatyana is her own in the house, all doors are open to her. And the secrets in the estate are higher than the roof: a ghost wanders and rings bells, maids disappear without a trace, it is not clear where the secret passage leads. Only the dungeon remained unexplored, but Tanya found out which stone to click on to open the hole, and fearlessly headed straight into the unknown!..