The title says all! That's your prompt!
The Suitcase.
Does that have to be your title? Absolutely not!
Can you use it as your title? Sure!
Since it's a short stories contest, I will put the maximum word limit at 4000 words. Can you go over by a paragraph or two? Sure thing. Remember, just because the maximum word limit is 4000 words, doesn't mean you can't write something as short as two sentences if that's what you enjoy writing.
Judging will be community vote - like count.
Looking forward to reading your stories and HAVE FUN WRITING!