The head of the Medusa, that's what's in the box. And whoever looks on her will be changed not into stone, but into brimstone and ashes. But, of course, you wouldn't believe me. You'd have to see for yourself, wouldn't you?

14 seconds sound clip from the Kiss Me Deadly movie soundboard.

You can hear this line at 01:40:01.297 in the Blu-ray version of the movie.

Quote context

[...]

- You have been misnamed, Gabrielle. You should have been called Pandora. She had a curiosity about a box and opened it, and let loose all the evil in the world.

- Never mind about the evil. What's in it?

- Did you ever hear of Lot's wife? No. Well, she was told not to look back, but she disobeyed and she was changed into a pillar of salt.

- Well, I just want to know what it is.

- Would you believe me if I told you? Would you be satisfied?

- Maybe.

- The head of the Medusa, that's what's in the box. And whoever looks on her will be changed not into stone, but into brimstone and ashes. But, of course, you wouldn't believe me. You'd have to see for yourself, wouldn't you?

- Where are we going?

- Where I am going, it is not possible for you to go.

- I had no illusion about deceiving you. You have the feline perceptions that all women have.

- Would you mind moving? You're sitting on my coat.

- Whatever it is in that box, it must be very precious. So many people have died for it.

- Yes, it is very precious.

[...]