It Follows

A date takes a terrifying turn for Jay when her new boyfriend transfers a curse to her through sex. Now she must stay one step ahead of a paranormal predator that can take anybody’s form, though invisible to the unaffected. 

Her bewildered friends and sister seek to help. However Jay knows her only hope of surviving, even temporarily, is to pass on the torment - a probable death sentence for the guy she chooses, after which the deadly entity will revert to pursuing her…