Sound of Insects: Record of a Mummy by Swiss director Peter Liechti has been named Best Documentary by the European Film Academy.
The film, inspired by a true story, tells of the mummified corpse of a 40-year-old man discovered by a hunter in one of the most remote parts of the country. The dead man's detailed notes reveal that he actually committed suicide through self-imposed starvation the previous summer.
With no firsthand evidence of the actual suicide in question, the film relies instead on the text of Japanese author Shimada Masahiko's novella Until I Am a Mummy. These reflections are delivered as a voice-over.
The academy praised the "challenging" film for the "skilful application of creating in a minimalist manner an extraordinarily visual story between life and death".
The ceremony for the 22nd European Film Awards will take place in the German city of Bochum on December 12.
swissinfo.ch and agencies