Jekyll and Hyde

Strange Case of Dr Jekyll and Mr Hyde is the original title of a novella written by the Scottish author Robert Louis Stevenson that was first published in 1886. The work is commonly known today as The Strange Case of Dr. Jekyll and Mr. Hyde, Dr. Jekyll and Mr. Hyde, or simply Jekyll & Hyde. It is about a London lawyer named Gabriel John Utterson who investigates strange occurrences between his old friend, Dr. Henry Jekyll, and the evil Edward Hyde.

The work is commonly associated with the rare mental condition often spuriously called "split personality", referred to in psychiatry as dissociative identity disorder, where within the same body there exists more than one distinct personality. In this case, there are two personalities within Dr Jekyll, one apparently good and the other evil; completely opposite levels of morality. The novella's impact is such that it has become a part of the language, with the very phrase "Jekyll and Hyde" coming to mean a person who is vastly different in moral character from one situation to the next.


Dr. Henry Jekyll is a "large, well-made, smooth-faced man of fifty with something of a slyish cast", who occasionally feels he is battling between the good and evil within himself, thus leading to the struggle between his dual personalities of Jekyll and Edward Hyde. He has spent a great part of his life trying to repress evil urges that were not fitting for a man of his stature. He creates a serum, or potion, in an attempt to mask this hidden evil within his personality. However, in doing so, Jekyll transforms into the smaller, younger, cruel, remorseless, evil Hyde. Jekyll has many friends and has a friendly personality, but as Hyde, he becomes mysterious and violent. As time goes by, Hyde grows in power. After taking the potion repetitively, he no longer relies upon it to unleash his inner demon i.e., his alter ego. Eventually, Hyde grows so strong that Jekyll becomes reliant on the potion to remain conscious.

Stevenson never says exactly what Hyde takes pleasure in on his nightly forays, generally saying that it is something of an evil and lustful nature. Thus, in the context of the times, it is abhorrent to Victorian religious morality. Hyde may have been reveling in activities that were not appropriate to a man of Jekyll's stature, such as engaging with prostitutes or burglary. However, it is Hyde's violent activities that seem to give him the most thrills, driving him to attack and murder Sir Danvers Carew without apparent reason, making him a hunted outlaw throughout England.

Realizing he will soon be Hyde forever, Jekyll leaves behind a testament, pointing out that while Jekyll often felt like a charlatan, Hyde felt like a "genuine man" years younger and far more energetic than his more "sociable" self. He also states in his final confession that although Hyde knew people recoiled from him, he did not recoil from them.


Stevenson had long been intrigued by the idea of how personalities can affect a human and how to incorporate the interplay of good and evil into a story. While still a teenager, he developed a script for a play about Deacon Brodie, which he later reworked with the help of W. E. Henley and saw produced for the first time in 1882. In early 1884 he wrote the short story "Markheim", which he revised in 1884 for publication in a Christmas annual. One night in late September or early October 1885, possibly while he was still revising "Markheim," Stevenson had a dream, and upon wakening had the intuition for two or three scenes that would appear in the story. Biographer Graham Balfour quoted Stevenson's wife Fanny Stevenson:

"In the small hours of one morning,[...]I was awakened by cries of horror from Louis. Thinking he had a nightmare, I awakened him. He said angrily: 'Why did you wake me? I was dreaming a fine bogey tale.' I had awakened him at the first transformation scene."

Lloyd Osbourne, Stevenson's stepson, wrote:

"I don't believe that there was ever such a literary feat before as the writing of Dr Jekyll. I remember the first reading as though it were yesterday. Louis came downstairs in a fever; read nearly half the book aloud; and then, while we were still gasping, he was away again, and busy writing. I doubt if the first draft took so long as three days."

As was customary, Mrs Stevenson would read the draft and offer her criticisms in the margins. Louis was confined to bed at the time from a haemorrhage. Therefore, she left her comments with the manuscript and Louis in the toilet. She said that in effect the story was really an allegory, but Louis was writing it as a story. After a while Louis called her back into the bedroom and pointed to a pile of ashes: he had burnt the manuscript in fear that he would try to salvage it, and in the process forced himself to start again from nothing, writing an allegorical story as she had suggested. Scholars debate whether he really burnt his manuscript; there is no direct factual evidence for the burning, but it remains an integral part of the history of the novella.

Stevenson re-wrote the story in three to six days. A number of later biographers have alleged that Stevenson was on drugs during the frantic re-write; for example, William Gray's revisionist history A Literary Life (2004) said he used cocaine, while other biographers said he used ergot. However, the standard history, according to the accounts of his wife and son (and himself), says he was bed-ridden and sick while writing it. According to Osbourne, "The mere physical feat was tremendous and, instead of harming him, it roused and cheered him inexpressibly". He continued to refine the work for four to six weeks after the initial re-write. The novella was written in the southern English sea side town of Bournemouth, where Stevenson had moved due to ill health, in order to benefit from its sea air and warmer southern climate.
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