A new parking lot security guard wants a job with some isolation, but when a young woman overdoses, he realizes 'the graveyard shift' isn't just an expression.A new parking lot security guard wants a job with some isolation, but when a young woman overdoses, he realizes 'the graveyard shift' isn't just an expression.A new parking lot security guard wants a job with some isolation, but when a young woman overdoses, he realizes 'the graveyard shift' isn't just an expression.