As title of my reviews, I thought that there were way too many unnecessary jump scares in the movie... it's like you're trying to watch '50 shades of gray' to anticipate some sexiness but in reality you're watching scary Russian porno... the origin of the "mermaid" (at this point I'm not even sure that's the right word for it... more like a vengeful spirit) who commited suicide in the lake, but how would there be a tombstone in the lake for her? If the ritual to trade love One with her comb didn't work, why would her tombstone cracked & fall apart? There should be a serious look again at the script...