A strikingly beautiful girl of nineteen’s powers as a spiritual healer make her the community sweetheart, but she struggles to maintain her sanity as her father forces her into the family business – of mass murder.

Good logline! Had me interested. The term strikingly beautiful and sweetheart seem a little contradictory for me, maybe something more "naive"?

(I meant 'put' not 'puts') Sorry.

First of all that sounds like an awesome story! Good work. Perhaps:

"A beautiful girl of nineteen's powers as a spiritual healer has made her the community sweetheart, but also puts her sanity to the test as her father forces her into the family business of mass murder."

Keep up the story!! Good Luck!