Egaeus is a man who can get lost in matters with "nervous intensity of interest". He is about to marry his cousin Berenice, whose health is deteriorating until the only part the disease has not touched are her teeth. It is those teeth, which fill Egaeus' mind and continue to haunt him to a terrifying degree. "Berenice" by Edgar Allan Poe dates back to the 19th century and was considered shocking upon its publication. The horror short story has been adapted onto film, including the 1954 short film Bérénice.