An exiled man falls in love with a woman he’s meant to kill, a 157 year old woman on the run from the authorities.

>>>In Carella City ageing can be postponed but never vanquished, until Karl meets Penelope who hasn't aged for over 150 years.

Okay, that sets up the situation for a plot.? Now what is the plot that follows?? Specifically, what? is Karl's objective goal?? Because the vector of the plot? is determined by what? one character, more than any other -- the protagonist -- desperately wants.

And btw, as a rule, character names are not given in loglines for fictional stories.? Rather the protagonist is defined in terms of a defining characteristic, usually a character flaw.? A flaw he will eventually have to overcome to achieve his objective goal.

>>>In Carella City ageing can be postponed but never vanquished, until Karl meets Penelope who hasn't aged for over 150 years.

Okay, that sets up the situation for a plot.? Now what is the plot that follows?? Specifically, what? is Karl's objective goal?? Because the vector of the plot? is determined by what? one character, more than any other -- the protagonist -- desperately wants.

And btw, as a rule, character names are not given in loglines for fictional stories.? Rather the protagonist is defined in terms of a defining characteristic, usually a character flaw.? A flaw he will eventually have to overcome to achieve his objective goal.

it's set in a dystopian world, where your film will mostly deal with the theme of validating new over old.

But what's the practical purpose it solves for that society?
Young Gen--I hope--would still be dealt as young (as far as the age is concerned) for job availability since appearance would then turn out to be the most deceitful criterion.?

The real question is: What's the authority's "incentive" for the maintaining such a society?
What's their motive?

Unless we know that, we cannot reverse engineer a plot out if it. Since good films boil down to discussing different faces of the same dice.

A good dystopian that comes to mind is "Snowpiercer"
The two political masterminds believed in maintaining a balance between anxiety and fear, chaos and horror, for life to go on smoothly.

How far was it right? Our protagonist seemed to agree too!
Until he discovers timmy inside the machine (goosebumps)
then the wrong became obvious...
(After all big talk, the elite needed the tail end for rendering small kids that can replace the extinct mechanical part)

Does your dystopian provide a good discussion?