A woman possessed by self-interest and greed, becomes architect of her own demise. Her grasp for power and money engulfs her in a web of sex, murder and corruption.

Revised this to read as follows - welcome feedback:

A powerful woman using all available assets to control people to increase her wealth, learns at her cost her assistant has greater ambitions, and a real flair for corruption and murder.

Thanks yes does help. Will rework with your comments in mind. Appreciate the feedback.

After reading this logline I have know idea what happens or what the story is about.

What does the lead character want?
What is standing in the lead characters way?

Hope this helped, good luck with this!