The Fifth Floor 1978

Long Time: 90min Year: 0 (IMDB - 4.6)
Stars: Bo Hopkins, Dianne Hull, Patti D'Arbanville
Release Date: 15 November 1978 (USA)
Country: USA
Genre: Thriller
Description: A young woman collapses on the disco dance floor of what's revealed to be strychnine poisoning. Assuming that this is an attempt at suicide, her boyfriend and doctor have her committed to the Fifth Floor, an asylum with obviously crazy inmates and a predatory orderly. The problem is, she's still sane!