 The kids go to Westin Hills to look for the experimental drug  Hypnocil. Hypnocil was the drug that Neil Gordon (Craig Wasson)  discovered was being taken by Nancy Thompson (Heather Langenkamp)  when they first met in  _Nightmare On Elm Street 3: Dream Warriors, A (1987)_ (qv). Nancy  was also the one who suggested that Westin Hills prescribe Hypnocil  to the patients.