Devotion is set in the 1980s in an ordinary Taiwanese apartment building, where other, distorted and alien dimensions began to penetrate into the reality we are used to. The plot of the game will follow the story of one separate family, each member of which has something to tell about their religious beliefs and carelessly made vows. The player will have to find out what this led to and stop the nightmare that is more and more dragging time and space into the abyss of hell, in the center of which is the ill-fated house...