A collection of mystical stories about cats. Gleb cannot sleep at night - it seems to him that someone is walking around the apartment. The parents do not believe the boy, and a classmate offers to track down the night guest. But is this idea really that good?...Inna brings home a cat she found on the street. Artem is annoyed: Just last week Inna barely gave homes to the cats she brought from the shelter for foster care. Moreover, the new guest behaves very strangely: he screams not like a cat and looks at Artem just like a person...Liza fell head over heels in love with classmate Kirill, and here’s luck: he invited her to his home to study virology. But is it worth going? After all, Lisa’s friend secretly told her that Kirill’s previous girlfriend disappeared without a trace...