Only an empty picture frame was left on the wall, along with a Minuit card. – intro video

On the eve of the auction, a painting valued at thirty million euros vanishes from the gallery at midnight. All that's left is an empty frame on the wall and a black card signed “Minuit.” The insurance company sends you to Paris to investigate, and every clue points to the auction house's chief appraiser. He hears out your suspicions, smiles, pours you a cup of coffee, and makes an offer: let's catch the thief together.