This paper reviews Mary Shelley's "Frankenstein" and, in particular, examines the
irrational behavior of the protagonist,
Victor Frankenstein. It looks at how Victor Frankenstein's
irrational behavior begins with his ambition, and what begins as a healthy curiosity about nature and science turns into an obsession that he cannot control. It analyzes the effect of this irrationality on the other characters in the story and shows how Frankenstein's irrational behavior leads to the death of four innocent people and, eventually, his own demise.