The Killing Jar

A stranger armed with a shotgun takes seven patrons hostage in a remote roadside diner. But as the body count increases, the desperate survivors discover that one of the hostages may be even more dangerous than their captor.

The Killing Jar is a 2010 mystery crime movie directed by Mark Young, starring Michael Madsen, Jake Busey, Amber Benson. It holds an IMDb rating of 5.8/10 from 3,263 votes and runs 1h 32m.