Try thinking of Danny being dubbed in Italian...

I like the Italian title of Night Must Fall.  "Notturno Tragico" sounds much more dramatic, great for trailers.  These two 14 x 20 Italian posters are nifty the way the color red was used to punch up the images, particularly the blood on Danny's hand.  Hey, they would have caught my attention, for sure. 

And "Buon Compleanno" to good friend Debbie.  My gift to you, knowing anything to do with Night Must Fall makes your day!