Budbringeren (1997)

Sometimes adventure comes in the least likely package

Dimwitted, somewhat misanthropic Oslo mail carrier Roy's quiet life changes dramatically on the day he steals a set of keys and lets himself into the apartment of a deaf woman who seems to be in trouble with a psychotic criminal. Though he doesn't know it at the time, his and her fate are about to intertwine and this is not going to be to his benefit.