The Tag-Along (紅衣小女孩) plus Q&A with writer Chien Shih-Keng.
The Tag-Along is the first in a horror trilogy written by Chien Shih-Keng, adapted from a well-known Taiwanese urban legend, "The Little Girl in Red".
Property agent Wei lives with his grandmother (Liu Yin-shang), but one day she suddenly disappears without a reason, and yet the routines of the house still continues as usual - the laundry is done, the house is well-cleaned as usual and even Wei's breakfast remains prepared every morning.
A clueless Wei then starts to search for his grandmother until he finds an unsettling video in his neighbour's camera, where a little girl in red was tagging behind his grandmother while she was hiking. When Wei's grandmother finally returns, Wei goes missing instead. Wei's girlfriend, Yi-chung gradually discovers that all these mysteries might be connected to the urban legend "The Little Girl in Red", and that the worst is yet to come.