Director Luis Quijano got the idea for the film in 2012 when he was a missionary in a small town in Yucatan, Mexico called Sabacche, where there's been sightings of the Huay Chivo, according to people from the town.
Makeup for the Huay Chivo took 4 hours to apply.
Director Luis Quijano and Lili Gorett shared their own experiences as missionaries in Mexico and revised actions and dialogue from the characters to make it more authentic.