“Unfollower” (*1/2 out of four) was a disposable suspense thriller about a fitness instructor (Julie Crisante) who soon becomes the target of cyber-stalking that turns personal and physical when she starts to become terrorized by an unknown assailant and has to use her fitness skills and psychological wits to outwit him and stay alive. Intriguing at first but story soon becomes ungainly, uninvolving, and unpleasant. Crisante is underwhelming in the lead. Hardly a story worth “following.”