Kiss Me Deadly Playing in the Black Mansion Tonight

On a dark country road, Mike Hammer picks up a woman who's hitch-hiking, wearing only a trench coat-- a mental institution escapee. There is a mysterious box that everyone seems to be after, but what it contains is a mystery, though it must be worth a fortune. At the end the scheming Christina finally gets her hands on it and cannot resist having a peek. The reason why the case is always warm to the touch becomes obvious, as the nuclear materials inside cause Christina to burst into flames.

Some of you will recall the reference to this scene in Pulp Fiction.