- A mental case?
- I'm sorry.
- Why should you be? My wife is a mental case.

— Paul Holland (Tom Conway)

6 seconds sound clip from the I Walked with a Zombie movie soundboard.

You can hear this line at 00:16:29.042 in the Blu-ray version of the movie.

Quote context

[...]

- And what's so alarming about the tower?

- Nothing really, but you must admit it's an eerie sort of place, so dark.

- Surely, nurses aren't afraid of the dark?

- Of course not.

- I used to be afraid of the dark when I was a child, but I'm not afraid anymore.

- Frankly, it was something of a shock to see my patient that way for the first time.

- Nobody had told me Mrs. Holland was... a mental case.

- A mental case?

- I'm sorry.

- Why should you be? My wife is a mental case.

- Please remember that, particularly when some of the foolish people on the island start regaling you with local legends.

- You'll find superstition a contagious thing. Some people let it get the better of them. I don't think you will.

- No.

- Come along. I'll introduce you to Dr. Maxwell and your patient.

- I can't tell you how glad I am to have you here, Miss Connell.

[...]