You show three cards - to regular red faced cards and a card with The Fly. 

You demonstrate how you have trained the fly to turn upside-down by itself. You then ask the spectator to hold on to the fly, in order to demonstrate another stunt. But unfortunately nothing happens...

You nervously ask the spectator to look at the fly, and it turns out, that the spectator has been holding it a bit too tight...!

Super easy "packet trick" with a fun and surprising ending. You receive the special printed playing cards with the beautiful Anglo back design + English instruction.