Jekyll and Hyde - A Brief Overview

Again, brief. This is to help with understanding the most basic information about Jekyll and Hyde.
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Context
The novel was written by Robert Stevenson. He was born in Scotland in 1850. His family background included scientists, engineers, and a religious priests. When we discuss this idea of religion vs science throughout the novel, you can see that this was reflected in Stevenson's life. In 1859, Charles Darwin published The Origin of Species which made it impossible to believe that God created the world in seven days. This made many people see it as an attack on religion. Darwin's theory came at a time of divide between the scientific community and religious community. Many thought that you had to choose between the two. There was no way you could believe in both. Many members of the religious community viewed science and scientists as meddling in matters only God should meddle in. This is essentially what Dr. Jekyll does in the novel. 
This novel also came at a time when Victorians viewed people as having a dual nature. That means that people were viewed as being both good and evil. It just depended on what we let people see. 

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Plot
Here's the deal. I'm going to break down the plot for you, chapter by chapter, in one sentence. (Side note: there is a belief that if you can't explain something in one sentence, you don't really know it, so do with that what you will).
Chapter 1 - Story of the Door
Enfield and Utterson pass a door which reminds Enfield about a story he heard about a strange man named Mr. Hyde that trampled a girl then paid off the family after entering the door and coming out with a check for a large amount of money.
Chapter 2 - Search for Mr. Hyde
Utterson has heard the name of this man before and starts to investigate it because the name is also on his friend, Dr Jekyll's, will and Utterson is worried Hyde wants to kill Jekyll to benefit from the will.
Chapter 3 - Dr Jekyll was Quite at Ease
Utterson speaks to Jekyll about his worries which Jekyll brushes off while assuring Utterson that he can be rid of Hyde any moment he chooses.
Chapter 4 - The Carew Murder Case
An elderly man is murdered by Hyde using half of a walking stick given to Jekyll from Utterson years earlier but there is and has not been any sign of Hyde for two months (though there are witnesses to state he was indeed the one to murder the old man).
Chapter 5 - Incident of the Letter
Jekyll assures Utterson that Hyde will never been seen or heard of again because of a letter that Hyde had written but when the letter is compared to Jekyll's own handwriting, Utterson is forced to believe that Jekyll forged the letter to cover up for Hyde.
Chapter 6 - Remarkable Incident of Dr Lanyon
Lanyon is on his deathbed (he blames Jekyll) but hands Utterson a letter that he says will explain everything (including his own sickness) but not to open it until Jekyll is missing or dead and then Lanyon dies.
Chapter 7 - Incident at the Window
Utterson and Enfield spot Jekyll in a window looking like a prisoner but Jekyll's expression changes to absolute terror, so much so that it "froze the very blood" of the two below.
Chapter 8 - The Last Night
Utterson breaks into Jekyll's lab to find a body that may or may not be his on the floor near a will that has crossed out Hyde's name and has put Utterson instead.
Chapter 9 - Dr Lanyon's Narrative
Lanyon's letter that was given to Utterson is read and describes how a small looking man took a potion and turned into Jekyll before his eyes, causing Lanyon to become ill.
Chapter 10 - Henry Jekyll's Full Statement of the Case
Jekyll tells the story of how he turned into Hyde and how he became addicted to his dark side and how it was so powerful it overtook him.