The Tag-Along: Devil Fish is a horror movie that follows the story of two students, Wei and Jia-Hui, who are fascinated with the paranormal. They decide to make a documentary about a spirit medium named Xiao Rui, who is renowned for her abilities to exorcise demons.
Xiao Rui is called to help a possessed man and the students accompany her to document the process. While performing the exorcism, the students accidentally break a seal that has been keeping a devil fish demon captive. The demon is freed and wreaks havoc, causing destruction and terrorizing people in its path.
As the situation becomes desperate, Xiao Rui reveals that she is also a shaman and that she must help the students to send the demon back to its world. Together, they embark on a dangerous mission to defeat the demon and close the portal that allowed it to enter the human world.
As they journey to find a way to defeat the demon, they encounter a series of challenges that test their resolve and courage. They must navigate through dark and dangerous places and overcome their fears and doubts if they hope to succeed in their quest.
The Tag-Along: Devil Fish is a chilling and thrilling movie that combines horror and suspense to make an unforgettable viewing experience. It showcases the human will to survive and the strength of faith and friendship in the face of adversity.