Strange things are happening at the medical college. There is a ghost in the basement that scares the night guards to death, and they refuse to work. Mark Kazantsev, the new director of the college, a former military man, does not believe in ghosts and, together with teacher Margarita Pikuza, begins his own investigation. However, there is one problem - Margarita perceives Mark as a personal enemy. And then two students disappeared - the mayor’s daughter and her lover...