He worked in secret. He kept a lot of stuff locked in a cupboard in his laboratory. He never opened that cupboard until he'd barred the door and drawn the blinds.
8 seconds sound clip from the The Invisible Man (1933) movie soundboard.
You can hear this line at 00:10:33.642 in the Blu-ray version of the movie.
Quote context
[...]
- He meddled in things men should leave alone.
- What did you mean about things men should leave alone?
- Straightforward scientists have no need for barred doors and drawn blinds.
- He cares nothing for you. He'll never care about anything but test tubes and chemicals.
- How can he go away like this without a word?
- Please, darling, let me tell you how I feel. I can't work or sleep until I know.
[...]