In the hit movie, Batman Begins
, the young psychiatrist Jonathan Crane torments his patients with fear, driving them to madness with a terror-inducing toxin and a horrific mask of his own design. When he is given a taste of his own medicine, however, Crane's genius-level intellect crumbles into madness. He dons the mask again and becomes the Scarecrow
, an even more twisted version of his former self who exists on fear and sadism.