Brackish (2015)

"If you could bring her back, would you?" This is the question burning deep within the mind of Jake, a man already torn apart by the brutal death of his fiancé Sarah. In an attempt to snap him out of his emotional tempest , Tila, his sister, convinces Jake to join her and her friends on a camping trip to an abandoned ghost town as a way to relax and get away from it all. However, things soon go wrong when Jake unknowingly discovers the dark secret of the town; a secret hinted within the warnings to stay away and leave from Merlock, the sheriff of a nearby town. Jake and the others ignore the warnings and press on, unaware of the events they are setting forth, and the fatal price that will have to be paid to answer this single burning question... "If you could bring her back, would you?"