'Hidden' is a drama based on a true story, where a married couple is faced with a problem that the science describes as parapsychology phenomena but among the religious people is known as demonic possession.

The film follows a couple who migrated to Switzerland and whose relationship gradually deteriorates under the weight of jealousy and regret. Forced to return to their homeland to recover their happiness, they face tragedy when one partner dies, profoundly reshaping the family dynamic, especially in relation to their son.