Two cards are peeked at. Performer selects a few cards from the pack an shows them. One spectator notes that his card is among the ones shown. When the cards are shown again, the spectator card is missing and reappears in the other portion of the deck whereas the other spectator's card has magically appeared face down in the first packet.
This is a plot by Carmen D'Amico and Ed Marlo.
runtime: 6min 27s