Cheek to Cheek with Bicycle Cards

Performer shows a pack of cards, reverses half of it and shuffles it into the other, face up. He spreads the deck on the table and turns his back. A spectator is requested to take any face up card, turn it face down and replace it anywhere in the spread. Magician squares up the deck and scans through it. Having a little trouble finding the card, he spreads the deck on the table and PRESTO! The entire deck is now face down and the selected card is face up!