Cao Thi Hau was born in a cave more than 60 years ago. Now she lives in a village,with many children and grandchildren to look after. Sometimes, she dreams of her dead mother calling her home – to the cave. The film captures fleeting moments of her daily life, its beauties and economic struggles, and the transmission of her people’s language, Ruc, to her grandchildren.

Cast & Crew
Producers: Julie Freres, Hugo Thyse, Julien Graff, Thomas Hakim
Directors: Nicolas Graux, Minh Quy Truong
Script: Nicolas Graux, Minh Quy Truong
Director of Photography: Nicolas Graux
Music: Michael Stearns
Sound: Ernst Karel, Minh Quy Truong
Editing: Minh Quy Truong
Production: Dérives, Petit Chaos, Lagi films

Awards
Golden Leopard - Filmmakers of the Present, Pardo Verde - Special Mention, Locarno IFF, 2025; Green Spike - Special Mention, Valladolid IFF, 2025; Golden Coconut – Best Documentary Fiction, Hainan IFF, China, 2025; Grand Prize, Montgolfière d'Argent, 3 Continents Festival, Nantes, France, 2025

Nicolas Graux
Nicolas Graux was born in Binche, a small town in Belgium’s former coal-mining region. His films, blending documentary and fiction, explore sociopolitical realities through immersive research and a poetic, sensitive gaze. He graduated from IAD (Institut des Arts de Diffusion) and co-founded the production company Replica in 2012. His debut feature, Century of Smoke (2019), a portrait of a Laotian family struggling with opium addiction, premiered at Visions du Réel and screened at international festivals such as São Paulo, Munich, and Cartagena. Since 2020, he has collaborated across borders and forms with Vietnamese filmmaker Trương Minh Quy He is currently developing his first fiction feature.

Filmography
Boy with the Devil (short, 2012), La Colonie plate (short, 2013), After Dawn (short, 2017), Century of Smoke (doc., 2019), Porcupine (short, 2023), Hair, Paper, Water… (doc., 2025)․

Minh Quy Truong
Minh Quy Truong was born in Buon Ma Thuot, a small city in the Central Highlands of Vietnam. His narratives and images, located between documentary and fiction, personal and impersonal, draw on the landscape of his homeland, childhood memories, and the history of Vietnam. He graduated from Le Fresnoy - National Studio of Contemporary Arts (France) in 2021. His films have been selected for international film festivals and exhibitions such as Cannes, Berlinale, Locarno IFF, New York FF, Clermont-Ferrand FF, IFFR, Busan IFF and Les Rencontres Internationales Paris/Berlin. He won the main Art Prize at the 20th VideoBrasil (São Paulo) in 2017. His latest film, Việt and Nam (2024), is selected in Cannes Official Selection - Un Certain Regard.

Filmography
Seok-jin Can't Swim (short, 2012), Someone Is Going to Forest (short, 2013), Mars in the Well (short, 2014), Déjà Vu (short, 2014), The City of Mirrors (short, 2015), How Green Was the Calabash Garden (doc., 2016), The City of Mirrors: A Fictional Biography (2016), The Sublime of Rectum (short, 2017), The Tree House (2019), Death of Soldier (short, 2020), Les Attendants (short, 2021), Porcupine (short, 2023), Viet and Nam (2024), Hair, Paper, Water…(doc., 2025)․