Red Rue (2017)

Rue died more than 100 years ago, on the night of a rare Red Moon, and generations of evil Hunters have been chasing her ghost ever since. The Hunters need her spirit in order to unlock the gates of hell. So it's up to her human friends Katie, Hardy, Justine and Stella to find a way to save Rue, before all hell breaks loose. Literally. But the farther Rue's friends go to try to save her, the more Katie realizes she has feelings for Rue.