Kill the Lover is the fifth song in the musical, A Dark Tale. It is a solo by Rosie, describing her hatred to Harvey.
Here are the lyrics.
ROSIE
He knows
Forth forth forth
He knows that he's the one in my way
He knows
That he's been bad
Not his fault
His family's on the way
Gotta kill the lover
Kill the lover tonight
Gotta kill the lover
Kill the lover tonight
Gotta kill the lover
Kill him tonight
He deserves to die
He
He's not to blame
His family
They're who
Is that enough!
He is worthy
Unworthy of anything
He will go down in hell
(He will go down)
Gotta kill the lover
Kill the lover tonight
Gotta kill the lover
Kill the lover tonight
Gotta kill the lover
Kill him tonight
He deserves to die
He
He burnt me down
He
Who killed me
Flames went out
Get revenge on him
Finally deserved
He will die
Gonna kill him tonight
Gotta kill the lover
Kill the lover tonight
Gotta kill the lover
Kill the lover tonight
Gotta kill the lover
Kill the lover
Tonight!
Kill the lover
Tonight!
Kill the lover tonight