Splat Pack veteran Alexandre Aja tries his hand at family-in-peril horror along the lines of the Quiet Place franchise with Never Let Go. But mostly, the French director just succeeds in making us miss his entertainingly trashy swerves into B-movie pulp, with creature features built around ravenously bitey carnivorous fish (Piranha 3D) or giant Florida gators riled up by a hurricane and flood (Crawl). Whatever their strengths and weaknesses, those movies were fun popcorn entertainment with teeth. Fun is banished from Aja’s latest, which starts out mildly intriguing and chalks up a few bracing jump scares before running out of juice.