Afflict (2015)

A stunning example of a chance meeting at a book signing, evolving into a set of events leading to murder - after murder - after murder! Kevin, a newly successful author, crosses path with a manipulative and seductive young woman, Summer, and her unsavory associates. A simple indiscretion quickly becomes a web of kidnapping, blackmail, and cold-blooded killings; the characters range from being naive to conniving, leading an audience wondering who the real victim is in this sordid one-night-stand.

Unfortunately the movie Afflict is not yet available on HBO Max.