Stranger on the Third Floor1940

Mike:
[referring to Meng] Did you ever want to kill a man?

Martin:
My son, there's murder in every intelligent man's heart.

Mike:
He's no man. He's a worm - the kind you ought to jump on with heavy boots.

Martin:
You'll have to do an awful lot of jumping. The Earth is covered with 'em.

Mike:
[while absentmindedly gesturing with his dinner knife] It'd be a real pleasure to cut his throat.

Martin:
Say, you're not kidding. Put down that knife!