A Candle for the Devil (lit. Spanish: Una vela para el diablo), also released as It Happened at Nightmare Inn, is a 1973 Spanish horror film directed by Eugenio Martín and starring Aurora Bautista and Judy Geeson. Its plot follows two sisters in Spain, both suffering from extreme repression and religious paranoia, who murder a British guest at their inn just before her sister arrives to meet with her.