1902. Helena Walton-Cisneros has started her own detective agency and taken on two new uncanny cases, both located in Paris. First, two English women claim to have seen the ghost of Marie Antoinette in the gardens of Versailles. The second case is the murder of a young woman working at the mysterious Méliès Star Films studio outside Paris. Are the cases connected? And what exactly is George Méliès practising at his secretive film studio?