A slice of life with a spooky stalker following. Where did it come from? Where will it lead?

Rating: Null/10 (4 August 2015)

I managed to find this movie on DVD at my local public library. It isn't my wife's type of flick so I had to watch it by myself. I had to hold my own hand when things got scary!
The story has no beginning and no end, it is a sort of slice in the life of a band of teenagers. I will focus on only one of them, Maika Monroe (probably 19 or 20 at filming) as Jay Height. She is your fairly typical teen and has been dating a new guy. They get amorous, they sleep together, he disappears but she starts to see a strange, zombie-like form following her. But only she can see it. Tracking down the boy he tells her it was transferred to him during sex with different girl, now he has transferred it to her, she must have sex with a different guy to get rid of it.
Whoa! Stop here. What kind of moral degradation is that? Teens just matter of factly thinking it might be OK to "infect" someone else just to get better themselves? Is that sort of like "If I can give you AIDS then I will get better and that is OK"?
Well as it turns out the situation is not so simple. It seems that none of them can really get rid of the mysterious zombie-like entity that might kill them if it manages to touch them. They try to lure it into a swimming pool to kill it by throwing all kinds of plugged in electrical devices.
Then the movie ends without resolution. This does not have a very high rating, even then it seems too high. It isn't a very good movie and it isn't that scary. Plus the morals are off the chart wrong.