"And then the murders began"

[Jubal]

A silly game, similar to "on a llama farm" - pick a random nearby book, write the first sentence out, then put "And then the murders began..." as the second sentence to see what the result is!

I'll start:

In a hole in the ground, there lived a hobbit. And then the murders began...

[Caradìlis]

Thinking about it, this is way too accurate...

Mr and Mrs Dursley, of number four, Privet Drive, were proud to say that they were perfectly normal, thank you very much. And then the murders began...

[Jubal]

A rather obvious cosmic-level one:

In the beginning God created the heavens and the earth. And then the murders began.

[Caradìlis]

^that one is indeed brilliant!! 

Look, I didn't want to be a halfblood. And then the murders began...

[Jubal]

One that works all too well is 1984:

It was a bright cold day in April, and the clocks were striking thirteen. And then the murders began.

The Towers of Trebizond, starting with more of an action scene than usual:

"Take my camel, dear," said my Aunt Dot, as she climbed down from this animal on her return from High Mass. And then the murders began.

And of course Kafka's Metamorphosis... is basically still just Kafka, because adding anything to surrealism just makes it as surreal as it was before.

As Gregor Samsa awoke one morning from uneasy dreams he found himself transformed in his bed into an enormous insect. And then the murders began.

[Caradìlis]

Two households both alike in dignity, in fair Verona, where we lay our scene, from ancient grudge rise to new mutiny, where civil blood makes civil hands unclean. And then the murders did begin...

[Glaurung]

To start by quoting Iain Banks:

"It was the day my grandmother exploded. And then the murders began..."

[Caradìlis]

From the book I am currently reading (and the result is not too far off):

In the false dawn a warm wind blew out of the east, shaking the dry reed cases. And then the murders began...

[Jubal]

It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness, it was the epoch of belief, it was the epoch of incredulity, it was the season of Light, it was the season of Darkness, it was the spring of hope, it was the winter of despair. And then the murders began...

[Caradìlis]

We started our family business with good food and  good health at its heart. And then the murders began.

[Jubal]

"This supplement was originally published for the d20 system in 2002 by Troll Print Games. And then the murders began."

[Caradìlis]

This book is the product of a truly joint effort of its four authours. And then the murders began...

[Tusky]

In a village in La Mancha, the name of which I purposefully omit, there lived not long ago one of those gentlemen who keep a lance upon a rack, an old buckler, a lean horse, and a greyhound for coursing. And then the murders began.

[comrade_general]

The background for Ohio's greatness was woven by hardy frontiersmen, whose struggles for freedom turned a trackless wilderness into a land rich in resources, education, farming and industry. And then the murders began.

[Jubal]

This one works well:
"Many years later, as he faced the firing squad, Colonel Aureliano Buenia was to remember that distant afternoon when his father took him to discover ice. And then the murders began."
(Gabriel Garcia Marquez - 100 Years of Solitude)