A man without defence, because he's lost in the dark.
5 seconds sound clip from the Dead of Night (1945) movie soundboard.
You can hear this line at 01:38:25.011 in the Blu-ray version of the movie.
Quote context
[...]
- Grainger, would you be kind enough to fetch my spare glasses from my room? I'm lost without them.
- And now, Craig... I accept your dream.
- You have not told me yet what it is that you are compelled to do, Craig.
- To kill someone, someone who's never done me any harm. Who wishes me nothing but good.
- A man without defence, because he's lost in the dark.
- Oh, Doctor why did you have to break your glasses?
- Chop, chop, chop, chop, chop!
- Yes, Mr. Craig'll hide! Mr. Craig'll hide! One, two, three, four, five, six.
- Peter!
- Something gone wrong with your plans?
- Please, Peter, let me hide in the room in the mirror.
[...]

 Dead of Night (1945)
 Dead of Night (1945)  Phantom of the Opera (1943)
 Phantom of the Opera (1943)  Scooby-Doo, Where Are You! (1969)
 Scooby-Doo, Where Are You! (1969)  Halloween III: Season of the Witch (1982)
 Halloween III: Season of the Witch (1982)  Knight Rider (1982)
 Knight Rider (1982)