Bickford Shmeckler (Patrick Fugit) is a lonely college student who keeps a journal known as "The Book" of his philosophical ideas and theories. One night during a loud toga party, his book is stolen by the inebriated and beautiful Sarah Witt (Olivia Wilde) who briefly meets Bickford and is shown to be a kleptomaniac. Sarah becomes enamored with the writings, and experiences what she calls "braingasms". After showing The Book to her boyfriend Trent, she rants about how she would love to meet the author (and have sex with him). Later that night, Bickford discovers that the book is missing and begins to panic.