They never give an explanation why Professor Levin turns into a monster. It must be the guilt he experiences from committing horrendous acts - manifested physically.
He never turns into the monster, until after he kills Monique. Each time he turns into the Seddok, his appearance is more and more grotesque.
At the first success with healing Jeannette, although temporary, she is grateful to the fullest. When she realizes that some sacrifice is necessary for her recovery, she desires to flee from the doctor.
The doctor is then keeping Jeannette against her will, and relations are crumbling on all fronts. The movie ends with tragedy for all.
He never turns into the monster, until after he kills Monique. Each time he turns into the Seddok, his appearance is more and more grotesque.
At the first success with healing Jeannette, although temporary, she is grateful to the fullest. When she realizes that some sacrifice is necessary for her recovery, she desires to flee from the doctor.
The doctor is then keeping Jeannette against her will, and relations are crumbling on all fronts. The movie ends with tragedy for all.