The Mutation (2021) 2021 Horror Movie Name The Mutation (2021) Directed by Shannon Holiday Scott Chambers Written by Scott Chambers Starring by Ricardo Freitas Amanda-Jade Tyler Andrew Rolfe Megan Purvis Abi Casson Thompson Jamie Robertson Jodie Bennet Derek Nelson Mya Brown Nick Danan Genres Horror Country United Kingdom Language English Overview A mutated rat has been let loose in a city.