Alex: Do you know the definition of insanity?

Todd: Of course. [Todd scratches his nose, nervous to be in the presence of this man and hoping it doesn’t show.] It’s doing the same thing over and over again and expecting different results, right?

Alex: No! That was just a clever witticism Einstein came up with. 

Todd: Then I … I guess I don’t. 

Alex, shaking his head: And I’m the one here behind bars– … Insanity is mental illness of such a severe nature that a person cannot distinguish fantasy from reality, cannot conduct their affairs due to psychosis or is subject to uncontrollable impulsive behavior.

Todd: And … ?

Alex reaches through the bars and twists the young detective’s head until his neck cracks and his body slumps forward. Alex rifles through the dead man’s pockets until he finds Todd’s keys, then opens the cell door and walks out.