Step right in to a secret party. Unfortunately, it's strictly on your computer. Perrier and Ogilvy Paris team up for "Secret Place," a digital secret party taking place in Paris that lets you participate as one of 60 different characters. Probably for adults-only, as the party involves a slightly risque scenario, the campaign runs on mobile devices and the desktop. You sign in, and wander through the party, switching characters as you go while you hunt for a secret treasure. Once you find the clues that will lead you to the treasure -- a hidden Perrier bottle -- you can enter for a chance to win a trip to the Carnival in Rio, Ibiza in Spain, St. Tropez in France, Art Basel in Miami or New Year's Eve in Sydney.