Lyosha is haunted by the memories of a recent evening: he witnessed the beating of a guy and could have intruded, but escaped instead. Alisa, a girl from the university, noticed him. In addition to this, another student, Misha, makes ambiguous hints. Influenced by all these impressions and thoughts, Lyosha makes a hasty attempt to rape Alisa in order to prove to himself and the others that he is not who he seems to be.