She Came from the Swamp

Nadezhda is running away from her problems—mainly her family's supernatural murder cult that's constantly putting her loved ones in danger. Fortunately, her grandmother left her the house at the edge of a swamplife preserve so she can go off-grid for a while.
It turns out the shack isn't the only thing she's inherited—the ancient kikimora who followed her family from Ukraine years ago is still dwelling in the swamp and she's looking for an offering.
Suddenly the tales Nadezhda heard of the creature don't seem so scary anymore, and she's willing to fight off her natural instincts to run if it means she gets to give herself to the most beautiful monster.