The younger brother who committed the crime sought death at the hands of his adopted brother to have a new life.

Two young university students, Nam and Minh, live together in a small rented apartment. They are lovers. Minh suddenly disappears, leaving Nam soullessly alone in the apartment. Ngọc is their neighbour and the friend who stays by Nam's side to care for and accompany him while he is gradually losing his mind. Everything becomes apparent, and the explanation for Nam's nightmares is revealed.