A private eye shadows a female serial killer of men all over the U.S. without her knowing as he, strangely enough, occasionally acts as her guardian angel.

Stephen: If I blink, I might lose her.
Lucy Wilson: So?
Stephen: So the last time I blinked, I lost you.
Hilary: God forbid you actually have to come out of your hole and talk like a real human being. It makes me wonder what you did before computers, detective.
Stephen: My wife was right. I spent my whole life hiding behind computer screens, and it cost me my daughter. But it's time to let go because... because I met an extraordinary woman and she needs my help. I won't make the same mistake twice.
Gary: I'm sure every man and his dog has tried a line on you, but has anyone ever told you you have very sad eyes?
Joanna: Well, yes, they have, Gary. Has anyone ever told you you need a shower?
Joanna: Congratulations, Daddy.
Joanna: I have never been to Cleveland, and everybody looks like somebody else.
Reva, Desk Clerk: A gentle reminder, darling. Take out your own trash on Tuesday and Thursday.
Joanna: Of course.
Reva, Desk Clerk: And don't throw it in the street. Throw it in a bin. And tell your boyfriend to do the same.
Joanna: Which one?
Reva, Desk Clerk: The one who's been following you around all week. You know the one - the one who waits outside for you and follows you around like a lost dog.
Alex: On the arms of a blind man is the safest place for a beautiful woman to be.
Lucy Wilson: So, like I said, if you like her so much, why don't you talk to her?
Stephen: I don't talk to anyone.
Lucy Wilson: You talk to me.
Stephen: You're not real.
Alex: [as to her selecting him for marriage] Why me?
Joanna: Because you can't see who I really am, and I think it's in the stars.
[Knocking on door]
Gary: No milk today, Thanks.
[Knocking continues]
Gary: Thank you. Now piss off and mind your own FUCKING BUSINESS!
Lucy Wilson: [whispering] He loves her and he's going to take her away from you.
Stephen: Not if she does him in first.
Lucy Wilson: [whispering] You're jealous, Daddy.
Stephen: [loudly] And you're not?
Joanna: You like sharks?
Gary: I like the myths. They have limited memory. Maybe only a minute or two. Sounds like a pretty good life to me. Of course, the downside is they can never stop swimming. Even when they're asleep, they have to keep moving forward, 'cause if they stop even for a moment, they'll die.
Det. James Cross: [as Joanna draws his gun] Don't touch that.
[Joanna confidently shoots him]
[repeated line]
Joanna: Merry Christmas, Daddy.