In a gloomy and decaying Italian hotel, a group of people gathers to attend an extravagant party hosted by an enigmatic millionaire. Among the guests is a famous mystery novelist, who is seeking inspiration for his next work. However, the night takes a macabre turn when one of the attendees is brutally murdered in the midst of a guessing game centered around an ancient family secret.
With the police absent from the scene and panic overtaking the group, the writer decides to take control of the investigation, attempting to unravel what appears to be a labyrinth of betrayals, jealousy, and dark secrets from the past. Each guest has their own story, and as the mystery deepens, the tension creates an eerie atmosphere where not everyone is as they seem.
The clues become increasingly confusing and reveal a past marked by envy and resentment. Everyone is a suspect, and the writer is forced to step out of his comfort zone, confronting his own demons while trying to uncover the truth before another body falls. Caught in this deadly game, he must use his wit and narrative skills to untangle the enigma and save himself before the killer sets their sights on him. A work that blends suspense and unexpected twists in the style of giallo cinema, ensnaring the audience in a game of deduction and shocking revelations.