Semyon lives in a foster family. And this is his first real House. Semyon was received very well, allocated a separate room on the second floor of a spacious country house. He began to call the adoptive parents Ma and Pa and made friends with their only daughter, Lee. Ma and Papa allowed Semyon to take with him from the shelter a huge dog named Bucks. How well everything was going. Until Rimma, a distant relative left orphaned in a freak car accident, showed up. She seems to be the same age as Semyon, quiet and shy of everyone... But what if this is not an ordinary girl, but something that harbors eternal evil, from which there is no salvation?