When an outwardly perfect family moves into a labyrinthine apartment complex with a dark history, their fragile façade soon begins to crumble to the ground in a captivating horror-drama directed by Cheang Poi Soi and starring Shu Qi. May's (Qi) son has gone missing, and in order to win him back, the devoted mother is going to have to face her worst fears as she navigates a treacherous maze of incomprehensible evil. If she can make it out alive, she might just get a second chance at motherhood. If she falls prey to the darkness that surrounds her, however, she will suffer a fate worse than death as she is forced to confront every mother's worst nightmare.