Twin sisters separated at birth and raised by their parents in different social strata meet again and respond to the great contradictions of their lives. Can your environment change who you are?

Hi colibricubano,
To me, this sounds more like an unedited version of a movie tag than a logline. I suggest you finalize your lead character first, then the major event, and finally the action. You can introduce a Stake. Follow the formula below and re-write your logline.

the CHARACTER/POV: describe sociology/function and psychology/behaviour.
the MAJOR EVENT: this is the inciting incident, the call to adventure, catalyst etc.
the ACTION/GOAL: describe what the MC tries to achieve for most of the story.
Optional inclusions
the STAKES: for high concept stories, the stakes are implied in the basic logline
the OBSTACLE/ANTAGONIST: often part of the Action, or suggested by the Event
the HERO’S FLAW: this will express the theme and character journey/transformation.

I hope this helps.
Ben