It Follows
It Follows (2014) is an American supernatural horror film which is not necessarily a slasher but does include many of the tropes present in slasher films. It follows a woman, Jay, who, through sex, is cursed with an entity who will follow her and, if it ever catches her, will kill her. It must be passed on by having a one night stand with someone else, and if it catches that person, it returns to the former. The film plays with the idea of sexuality as a bad thing, not necessarily in the same way prior horror did, but it certainly is commentary on the idea of sexuality being punished.
It Follows can be viewed on Amazon.