I heard the servants talking about Mama Rose. They said she'd been mindless.

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

You can hear this line at 00:35:42.927 in the Blu-ray version of the movie.

Quote context

[...]

- You never talked about voodoo before.

- Haven't I? I suppose I take it for granted. It's just part of everyday life here.

- You don't believe in it?

- A missionary's widow? Isn't very likely, is it?

- I don't mean believe in it like believing in a religion. I mean, do you believe it has power?

- Do you think it could cure a sick person?

- Frankly, my dear, I didn't expect anything like that from a nice levelheaded girl like you.

- What are you driving at?

- I heard the servants talking about Mama Rose. They said she'd been mindless.

- Her son drowned. It affected her mind.

- The houngan cured her by giving her a little practical psychology.

- What if I took Jessica to see him?

- You don't know what goes on at the houmfort.

[...]