Alma is exhausted. Every day she wakes up with the unpleasant feeling that something strange is happening while she sleeps. Desperate, she places a video camera in her room. She is not alone.

No matter how hard she tries, Alma has the feeling that she is not resting. Something strange happens during her sleeping hours that she is unable to remember. Encouraged by her sister, she places a camera in her bedroom. The images show that during the night, something else is there. Every day, more conditioned by this discomfort, anxiety gives her a feeling of unreality. She does not relate to almost anyone and distrusts others, especially her new neighbor, towards whom she has an unexpected repulsion. She goes to therapy. She needs a guide to help her put an end to his torment. Through a set of guidelines, Alma manages to look at the Other Side. She does not like what she sees. She has no choice but to act.