Halloween 2025 promises chills all over the Paris region, with haunted museums, diabolical escape games and nightmarish cinemas. On October 31 and November 1, 2025, at the Château de Ferrières (Seine-et-Marne - 77), La Nuit des Ombres will plunge you into an immersive dinner party where every corridor conceals a secret and every shadow is a surprise.