A race of space vampires arrive in London and infect the populace.

Second vampire: It'll be much less terrifying if you just come to me.
Colonel Colin Caine: I'll do just that.
NASA man: I'd say she's perfect. I've been in space for six months and she looks perfect to me.
Dr. Hans Fallada: Don't worry. A naked girl is not going to get out of this complex.
Colonel Tom Carlsen: It was the hardest thing I ever did.
Dr. Bukovsky: We understand. It must have taken great courage to try and...
Colonel Tom Carlsen: No, you don't understand. Part of me didn't want to leave. She killed all my friends and I still didn't want to leave. Leaving her was the hardest thing I ever did.
Colonel Colin Caine: Colonel, take it from the beginning. Assume we know nothing... which is understating the matter.
Dr. Hans Fallada: I mean, in a sense we're all vampires. We drain energy from other life forms. The difference is one of degree. That girl was no girl. She's totally alien to this planet and our life form... and totally dangerous.
Dr. Hans Fallada: It was two hours ago that the guard was attacked. I wouldn't be at all surprised if we're seeing a pattern here.
Sir Percy Heseltine, Home Secretary: The girl he picked up was a nurse named Ellen. As you say, Ellen something or other. He doesn't know her other name, but he dropped her off at Thurlstone Hospital after spending the afternoon with her. He was very reluctant to talk about it. The man's totally exhausted.
Colonel Colin Caine: She's not human she's an alien, she'll destroy you!
Colonel Tom Carlsen: She's destroyed worlds...
Colonel Colin Caine: [looking at the rests of the humanoids] At what appears these two are no longer dangerous.
Space Girl: The web of destiny carries your blood and soul back to the genesis of my lifeform.
Colonel Colin Caine: Supposing you're right about all of this. What about that ship up there. What's it doing?
Dr. Hans Fallada: We can't know that. But we've got to assume the worst.
Colonel Tom Carlsen: She's resisting. I'm going to have to force her to tell me. Despite appearances, this women is a masochist. An extreme masochist. She wants me to force the name out of her. She wants me to hurt her. I can see the images in her mind. You want to stay? Otherwise wait outside!
Colonel Colin Caine: Not at all. I'm a natural voyeur.
Sir Percy Heseltine, Home Secretary: Um... how do you know she's still inside Armstrong? What's to prevent her from moving to someone else?
Colonel Tom Carlsen: She's trapped. I can feel that.
Colonel Colin Caine: Are you sure?
Colonel Tom Carlsen: No.
Colonel Colin Caine: You mean life after death?
Dr. Hans Fallada: Yes.
Colonel Colin Caine: Is there?
Dr. Hans Fallada: What?
Colonel Colin Caine: Life after death?
Dr. Hans Fallada: Do you really want to know?
Colonel Colin Caine: No.
Dr. Hans Fallada: Well, to answer your question, yes...
Colonel Colin Caine: Now she has clothes.
Prime Minister: Miss Haversham! Miss Haversham!
Kelly, Caine's aide: [snatches camera from photographer, exposes film then hands it back] Sorry!
Colonel Colin Caine: But I understand your real interest is...
Dr. Hans Fallada: Death, Colonel Caine, correct. Thanatology's the name for it. Death for you, Colonel, is a bureaucratic problem. Who did it. When, why did they do it. A problem to be solved, am I correct?
Colonel Colin Caine: And for you?
Dr. Hans Fallada: Well, I'm fascinated by death itself. What happens as we die, when we die. What happens after we die.
Space Girl: I am the feminine in your mind, Carlsen.
Dr. Hans Fallada: She's totally dangerous.
Second Radar Technician: [on the radio, referring to the bats floating inside the spaceship] Churchill, there must be hundreds of them.
NASA man: Thousands. Dead, I hope.
Derebridge: [Derebridge and Carlsen are observing the spaceship] What you gonna do?
Colonel Tom Carlsen: We want in. We only gonna get one chance, Derebridge. That thing won't be back for another 76 years. We'll both be dead. We have to take a look now.
Dr. Bukovsky: Also, the Churchill's escape pod is missing.
Colonel Colin Caine: What's that mean, did someone escape?
Colonel Colin Caine: Tell me again how the girl over powered you.
Dr. Bukovsky: She... was the most overwhelmingly feminine presence I have ever encountered. I was drawn to her on a level...
Colonel Colin Caine: Was it sexual?
Dr. Bukovsky: Yes. Overwhelmingly so, and horrible. Loss of control.
Colonel Colin Caine: Do as he says Kelly. Also, I want the two other bodies that were shot, The males. Collect the pieces and watch them. Get me the home secretary on the line now!
Colonel Colin Caine: [looking at a shrivelled corpse] And this was murder, you say?
Helicopter pilot: Sir, while you were with the PM, I had a call from base operations. The city is under martial law. We've been placed under NATO command.
Colonel Colin Caine: NATO!
Colonel Colin Caine: Which one of you is Doctor Bukovsky?
Dr. Bukovsky: I am.
Colonel Colin Caine: I'm Colonel Caine.
Dr. Bukovsky: From the SAS?
Colonel Colin Caine: Gentleman, that last remark is not for publication. This is a D notice situation.
[last lines]
Dr. Hans Fallada: Here I go.