The Underneth

What I want it to be is a regular teenage girl finds out her dad is keeping a big secret and he threatens her not to tell anyone but that ends up in him killing her mother, brother, and best friend. The rest of the story is her telling this guy who helps her when she gets jumped and they become close and soon they realize they love each other but they're too shy to tell. It has a sad ending because they never told each other they love one another and they never will because the girl gets murdered by her father but he gets caught and is sent to jail so they never knew what could've been. I hope you enjoy it though.