The Suzukis are a family of 4; father, mother, son and daughter. The son, Koichi (30), who had become a stay-at-home shut-in, decides one day to take his own life in his room on the second floor. His body is first discovered by the mother, Yuko (55), who is so distraught that she attempts suicide herself. Though rescued, she is hospitalized for mental trauma and lapses into a coma.
