It's because of Victor that I'm asking you to leave.
3 seconds sound clip from the The Curse of Frankenstein movie soundboard.
You can hear this line at 00:25:42.131 in the Blu-ray version of the movie.
Quote context
[...]
- Do you take your coffee black or white, Paul?
- Elizabeth, I don't know you very well, but I want you to do something for me.
- Yes?
- Leave?
- Yes. Leave this house at once, and never come back.
- That's impossible. Why do you ask it?
- I can't explain, but it will not be safe here.
- Not safe? Victor will be here all the time, won't he?
- Oh, yes. Victor will be here.
- It's because of Victor that I'm asking you to leave.
- He's conducting a series of experiments which could be extremely dangerous.
- You wouldn't understand, sufficient to say that.
- I would understand, I'm sure I would. Please, tell me.
- Believe me, I can't tell you, I would if I could.
- Then I shall have to ask Victor. If I'm to marry him, then I have a right to know.
- Marry?
- Of course, we're engaged. Didn't he tell you?
[...]