The movie is a gripping, unsettling story about a mother’s anguish as her child and their nanny vanish, featuring notably strong acting—particularly Gong Hyo-Jin's complex depiction of an enigmatic employee. Certain moments feel uneven in how quickly things unfold, and some of the characters don't seem to react realistically, but it still provides a powerful emotional resolution and prompts consideration of faith and what it means to be a parent. Ultimately, the film highlights the importance of being cautious, particularly when allowing unfamiliar people into our lives and taking care of those we cherish.

Source on TMDB