This film brings to the big screen from Stanford University experiment that wants to track the behavior of 24 participants in simulated conditions of detention. The 24 participants were chosen to show all the signs of people mentally stable. The university simulates a prison in the basement of the main building where the participants, previously divided into 2 groups, guards and inmates must live together for 14 days. In the event of signs of violence, the experiment had to end. How to transform the behavior of those involved and the findings were expected to see in what is a tragic and touching film.