After considering this for a while, I finally decided to put up another version of A Monster Came Knocking. I tried to remove it slightly, make it less obvious for the fic, but wasn't able to succeed. The final version will be in the fic and not posted separately.
This was pretty experimental so I don't expect it to be quite as good as the first one; after all, the second of anything doesn't tend to be.
A little house with people four
A stranger knocked on their front door
They greeted him with open arms
Didn't wonder if they'd come to harm
-o-
Mother, father, daughter, son
The whole family, four plus one
The stranger wormed his way inside
All was left was to divide
-o-
Seemed so good, yet bad intent
The stranger then was quite content
The father, found, a pool of blood
For to security he'd been lulled
-o-
The family was stricken with grief
The father's life had been too brief
The stranger, with his silver tongue
Condolences were easily sung
-o-
The calm brought then was not to last
A fragile jasmine flower cast
And broken, ripped, beyond repair
No trace that it had once been fair
-o-
In time the mother was worn down
To his advances she couldn't frown
All joy gone, no hope left
With a new man in bed she slept
-o-
The son had worried from the start
So in this story he took part
He knew the man and what he'd done
And that the man had almost won
-o-
He couldn't expose, and so one night
He set out to do what was right
Knife in hand, fear in the other
Strong hate for his mother's "lover"
-o-
Stealing in with feet of mouse
Not a sound heard through the house
Knife in hand and hand held high he-
Too late, red splash, no eyes to see
-o-
In time the mother found it out
And in her mind there was not doubt
That vile man had to be killed
A job not for those weak of will
-o-
In her rage she had no doubt
Her only thought was to attack
Not only did she lose the fight,
But revenge dropped out of sight
-o-
Losing all, he left them then
Soaked in blood 'gain and again
The family that he had once wanted
In the ground, forever haunted
-o-
Forevermore, to rot away
In misery is where he'll stay
And this is how he spends his life
Dreaming of his long-lost wife