Spoilers follow ...

Rating: 4/10 (3 November 2017)

We begin this with the sight of a pretty teenage girl in her shorts and underwear and high-heels, running away from something only she can see. Instant alarm bells ring with the probability that this will be just another glitzy, ditzy, horror-lite involving vacuous catwalk lovelies being stalked by a nasty man in a mask.
There are a lot more teens-in-shorts before it becomes apparent this isn't quite the shallow candy-floss I was dreading. This comes about with the courtship of blond Jay Height (Maika Monroe) and Hugh (Jake Weary), admirably waiting until their second date before having sex, during which Hugh passes on his 'affliction'. A similar passing on of the curse occurs with Greg (Daniel Zovatto), the next in line to have sex with Jay.
This seems to be a movie for teens by teens, where mundane anarchy runs moderate in a world where parents probably exist but are never there. Reminiscing about where they had their first kiss/beer in tiny, scratchy lost little voices alternating with scenes where they fall into lightweight sex seems like juvenile sensationalism to me. When the apparitions appear, there are moments of tension accompanied by an enigmatic 'retro' musical score by a collective called Disasterpiece. The finale has echoes of the Japanese 'Ringu 2 (1999)' in its setting.
Finally Jay gets to have sex with Paul (Keir Gilchrist), which may or may not pass on the curse. The very concept of a vague threat passed on by half-dressed young people coupling has a crassness that stops this film breaking out of its self-imposed 'teen fodder' stable of titillation, despite the interesting and well executed sense of occasional threat.