Top 4 in Top 10 scariest horror movies about summoning games.
A Dark Song
A Dark Song is a 2016 British-Irish independent horror film, written and directed by Liam Gavin, and starring Steve Oram and Catherine Walker. It was released to select cinemas and digital streaming platforms on April 28, 2017. This is Gavin's directorial debut. The film received mostly positive reviews. On review aggregator Rotten Tomatoes, it has a 91% approval rating based on 36 reviews, with an average review score of 7.4/10. Its consensus is: "A Dark Song delivers unsettling horror atmosphere and marks writer-director Liam Gavin as one to watch.
Sophia rents an isolated home in the Welsh countryside to convince the occultist Joseph Solomon to lead her into a grueling, months-long ritual quoted from the Book of Abramelin to summon her guardian angel, whom Sophia can then ask to speak to her dead seven-year-old son. Solomon explains that once they begin, if they leave the house before the ritual is over, they will be in grave danger and Sophia must undergo months of punitive exercises in which they will deal with real devils and angels.