The timing is disarmingly perfect for “Nerve,” the sparkplug little techno thriller about a mobile gaming craze gone wild. It centers on a game that glues players to their phones and sends them ...

There's a line between enjoyably stupid and stupid-stupid, and "Nerve" sails over it right around the halfway mark. You might be scoffing from the get-go, as this slick thriller-lite (based on a young ...