Lucifer, Season 3

[Lucifer fights Cain, getting him in a wrist lock and trapping his knife hand]

Lucifer:
I promised you…that I would find a way to kill you. [breaks Cain's wrist, forces his arm back to stab him with his own knife, and knocks him to the floor] I am a devil of my word!

Cain:
[mortally wounded] Is Chloe okay?

Lucifer:
She's fine. No thanks to you.

Cain:
[struggling to breathe and laughing] Now that I'm dying, I don't know what I was so afraid of. I'm going to Heaven.

Lucifer:
You really believe that?

Cain:
I told you, Lucifer, I don't regret anything I've done.

Lucifer:
Yes. But, that was before you killed Charlotte Richards.

Cain:
No. No, that was an accident.

Lucifer:
Oh, you pulled the trigger. You ended her life. You chose to kill her. Deep down, you know you're a monster…and that you belong in Hell, where you will torture yourself with that truth for eternity. 'Cause no matter what you tell yourself…you can't outrun what you've done. [his eyes glow red and the skin on his face crackles with electricity] What you truly are.

Cain:
And neither can you. [he laughs, gasps, and finally expires]

. . .

[Chloe walks in and sees Lucifer crouched by Cain's body]

Chloe:
Lucifer? …Lucifer?

[he rises and she finally sees his devil face for the first time, realizing…]

Chloe:
It's all true.

Lucifer:
[unaware] Detective?

Chloe:
…it's all true.