You must have some priceless possessions in that room if you keep them locked up. May I see them sometime?

5 seconds sound clip from the The Picture of Dorian Gray movie soundboard.

You can hear this line at 01:02:42.120 in the Blu-ray version of the movie.

Quote context

[...]

- Is that a way of saying you don't love me?

- If you like.

- It's very beautiful, Dorian. Thank you.

- Would you find David for me?

- I must go now.

- I've been exploring your house, Dorian. You don't mind, do you? It's better than a museum.

- I see.

- You must have some priceless possessions in that room if you keep them locked up. May I see them sometime?

- What rare things have you stored away there, Dorian?

- Skeletons of inquisitive guests.

- I suspected as much.

- I want to leave now, David.

- Of course.

- Good night, Dorian.

- Good night.

- Good night.

- Good night.

- It was the ninth of November, the eve of his own 38th birthday as Dorian often remembered afterwards.

[...]