New York, August 1962. Welcome to the city that never sleeps! Everybody who was anybody had come to Manhattan to celebrate the opening of the magnificent Grand Hotel – aspiring politicians, powerful industrialists and beautiful actresses. The largest luxury hotel in the United States was set on redefining the term “five-star”, and was also to be the crown jewel in the empire of Frederic Price. The hotel tycoon was one of the richest men in the country. Since his marriage to the actress Dóra Galor, he was now even better known than before.

The opening speeches were full of praise, and the guests ate and drank copious amounts from the five-course menu. The evening had all the hallmarks of an incredible coming-together of American high society. Once the official part of the event was over, the guests gathered for an exuberant cocktail party at the longest hotel bar in the entire city. But the evening took a tragic turn when the young actress Monique Moreau was found dead in the bathtub of her hotel suite late in the evening. The idea that the young woman, described by the media as the next Dóra Galor, would take her own life is rejected by everyone as incredible.

The police were informed immediately. But it will take the authorities hours to search the entire hotel and secure all the relevant evidence. You have all been requested to stay here in the lobby. Until the police have questioned everybody, you are all on your own in solving the mystery, asking the questions: what happened this evening? How could the opening celebration end so tragically?