4. Psychotic People We have decided to feature psychotic people in the opening sequence to our thriller film as they have the element of surprise because their behaviour is unpredictable and unexpected. Some of their behaviour is unexplainable, and adds a sense of mystery and intrigue to a thriller film. Psychotic people lose their sense of reality and are not able to tell what is the truth from what is in fact fiction. What some people don't understand is that suffering from a psychotic illness is actually a classed mental disorder and can take over an individuals life completely, therefore people who suffer from a psychotic illnesses should not be made fun of and excluded from society or made to feel isolated. Instead they should be properly treated and given the careful medical help in which they need.