Strange Case of Dr Jekyll and Mr Hyde
A Victorian horror novella in which a scientist chemically separates his respectable identity from his suppressed impulses, only to find the second self growing stronger until it no longer needs the chemical to emerge.
Summary
The novella is narrated mostly from outside, through the lawyer Utterson, who notices his friend Dr. Jekyll withdrawing from society and becoming associated with a disturbing figure named Hyde. Stevenson withholds the connection until the final chapter, though modern readers know the secret before page one.
What survives the spoiler is the psychological architecture. Jekyll believes he can separate the virtuous self from the base self and confine the base self to a chemical experiment. He is wrong in both directions: the suppressed self is stronger than the respectable one, and the respectable self was complicit in the suppression. Hyde is not the opposite of Jekyll. He is what Jekyll wanted permission to be.
The Victorian reading was allegorical: public virtue maintained through the violent suppression of private appetite, and the inevitable return of what was repressed. The chemistry gave the moral horror a rational container.
Jekyll enjoys the early transformations. Hyde's first appearances are pleasurable to him. The horror isn't that something evil was released; it's that the release felt like relief.
Quotes
"It was Hyde, after all, and Hyde alone, that was guilty. Jekyll was no worse; he woke again to his good qualities seemingly unimpaired; he would even make haste, where it was possible, to undo the evil done by Hyde."
"Man is not truly one, but truly two."