Plot idea one 
You and I are patrons at a coffee shop when a tornado rips through the area. How are we all going to cope with this scary situation? (This requires you to play a few npcs) 

Idea two
We are on a cruise ship, when the ships sinks and we get washed ashore a deserted island.

Idea three:
We both witness a gruesome murder and are on the run from the killer. 

I am definitely up for any ideas that you may have!