The Tag-Along: Devil Fish (2018)
Original title: 人面魚：紅衣小女孩外傳
The Tag-Along: Devil Fish is a 2018 Chinese-language horror movie directed by David Chuang, with a running time of 1h 55m. It stars Vivian Hsu, Rexen Cheng and Joe Chang.
When a spirit medium is called to exorcise a demon from a possessed man, he is unknowingly captured in the act by two students looking to document the process. When the students accidentally release the devil fish demon into the world, it is up to them and the spirit medium to send it back to the hellish world from where it came.
Where to watch The Tag-Along: Devil Fish
Stream: Midnight Pulp, YouTube TV
Watch free: Fawesome
Watch free with ads: Cineverse, Tubi TV
Rent: Apple TV Store, Fandango At Home