L’Alliance New York is proud to announce the New York premiere of The Big Sleep (Le Grand Sommeil) as part of the 2025 Crossing The Line Festival on Wednesday, September 17, 2025 at 7:30 PM. The performance takes place at Le Skyroom, L’Alliance New York, 22 East 60th Street, 8th Floor, New York, NY, 10022 and is presented in collaboration with the 14th edition of Seuls en Scène, Princeton French Theater Festival. Tickets start at $15. For more information and to reserve tickets, visit https://lallianceny.org/event/the-big-sleep/.

“With The Big Sleep, written and directed by Marion Siéfert, actress Helena de Laurens has won big. A golden score!” — Rosita Boisseau, Le Monde

Back at L’Alliance New York after her acclaimed Crossing The Line 2022 debut, _jeanne_dark_, Marion Siéfert brings another ferocious performance to this year’s festival. Collaborating once again with actress Helena de Laurens, Siéfert crafts a wild investigation into the fantasies and norms of adolescence and womanhood, challenging de Laurens to embody the tortures, triumphs and terrors of teenage girlhood.