A sheriff's deputy fights an alternate universe version of himself who grows stronger with each alternate self he kills.

Yulaw: I am Yulaw! I am nobody's bitch! You are mine.
Gabe: SOMETHING'S wrong!
Yulaw: Miss me?
Yulaw: I just need to do it one more time.
Yulaw: There hasn't been anything like what I have become. You know that, you were there for my very first one.
Gabe: I won't be the one, but neither will you.
[after seeing Yulaw run past a squad car]
Police Officer: Holy shit! He's doin' fifty!
Nurse Besson: For God's sake, you're getting an MRI, not a heart transplant.
Prison Warden: Yulaw, are you ready?
Yulaw: [looks at Warden] Are you?
Yulaw: The Multiverse, every universe in it, is irrational, sloppy. I try to make it rational. I try to make it neat. You call it murder. How can I murder myself 123 times? I just took those wasted energies and transferred them to one container: me. What if that is our fate? To unite with ourselves, to be unified forever. To be one. I will be The One.
Roedecker: [to Evan] He's close to you on strength.
Funsch: In this, you exist. In another you don't exist. In another, you're married to the same woman. In another, you're married to a different woman. In another, you're married to a man.
Gabe: Hey!
Funsch: There is a string of energy divided among every one of us. We all have it.
Yulaw: There has never been anything greater than what I have become.
Yulaw: [confronting Gabriel Law] The good news is you're not crazy. The bad news is...
[starts shooting at him]
Lawless: You want that thumb?
Gabe: So I'm next?
Funsch: You're the last.
Roedecker: You have killed 123 people, I'd say that is a *very* bad thing you did, Yulaw. You don't know what would happen if you kill this one. His death could affect the whole system, but I guess that doesn't matter to...
Yulaw: I know, everything must be balanced. Blah-blah-blah-blah, the party line. What do you think would happen?
Roedecker: Some people think you'd explode. Some people think you'd implode.
Yulaw: You're missing one.
Roedecker: Some people think you'd become some sort of god?
Yulaw: Yes, that's the one.
Yulaw: [to T.K] Before I saw him I felt him. It was me.
Gabriel Law: My grandfather taught me the energy of life goes in a circle in a perfect flow, balanced. He said until I find my center, my circle would never be whole. That day, I first saw her in the clinic I came in with a dog that was hit by a car. I knew right away she was my center. She made me whole.
Funsch: This is the only way to stop him. My own design. Yeah, that'll work too.
[Before Gabe and Yulaw fight each other]
Yulaw: After this, there will be only one.
[last lines]
[Yulaw making his announcement to the prisoners in the Hades Universe]
Yulaw: I don't need to know you. *You* only need to know *me*. I will be The One!
Gabe: [putting a protective helmet on Rotten Ronnie] It's okay. You're doing the right thing.
Roedecker: Funsch. Us splitting up, you going solo... is way out of procedure. So listen to me. I know where you come from. I know what you've been through, but this place is different. Not everyone is a combatant. There are innocent people here. So if you get into the shit, you trust your heart, not your head, hmm?
Funsch: Loud and clear, sir.
[Being ambushed by three cops]
Yulaw: Don't you people ever learn?
Funsch: Permission to speak, sir. I know what I've gotta do. And I'll never get the chance to say thank you for squaring me away. So, thank you sir.
T.K. Law: Maybe it's part of what's been going on with you. People get older, Gabe. They don't get stronger. They don't get faster all of a sudden.
[Yulaw listens to heavy metal in a stolen van but gets held at gunpoint by Roedecker]
Yulaw: Just when I find something that I like in this universe.
Yulaw: I don't need to know you.
Yulaw: You only need to know me.
Yulaw: I will be the one.
Yulaw: The shortest distance between two points will always be a straight line.
Roedecker: There's only one place he could be going.
Funsch: Not a problem.
[first lines]
Narrator: There is not one universe. There are many: A multiverse. We have the technology to travel between universes, but travel is highly restricted and policed. There is not one you. There are many. Each of us exists in present time, in parallel universes. There was balance in the system, but now a force exists who seeks to destroy the balance so he can become The One.
Funsch: I am a Multiverse agent.
Gabe: You're a nut.
Funsch: Hey, you're the one that's seeing yourself.
Prison Warden: [to Yulow] People have found you guilty of one hundred and twenty three counts of first degree murder and one hundred and twenty three counts of unauthorised travel to parallel universes. For these crimes you have been sentenced to life without the possibility of return.
Yulaw: Just so you know, I'm going to take that gun and kill you before you can pull the trigger. There's nothing you can do, except give it to me.
T.K. Law: You were shot. You need to be examined.
Gabriel Law: You can do it.
T.K. Law: Um, newsflash. I'm a vet. You're not a dog.
Roedecker: On the floor, right now!
Yulaw: The floor? This is a hospital. The floor is full of germs. Want me to get sick?
Yulaw: If we kill him, this whole universe could go with him.