七个学生看到广告，参加一项试验，研究如何能够消除疼痛的感觉。迎接他们的是一位神秘的科学家。随着学生一个接一个地消失，大家开始怀疑科学家的真实企图.
Seven students answer an advertisement to participate in an experiment to explore how the sensation of pain can be eliminated. Arriving at a secluded institute, they are welcomed by mysterious scientist JB Divay. Initially, JBs fascination with hypnosis, clocks and cactus plants are dismissed by the group as mere eccentricities. But as the students begin to disappear one by one, they begin to question JBs true intentions. In a final showdown, plucky Jason confronts JB over her deranged practices only to discover boyfriend Kyle strapped to a table beneath JBs final experiment, inches away from the razors edge...