Many years after leaving the small town behind, Joel returns to move his mother Monika, a home for the elderly struggling with dementia. However, Monika’s health takes a turn for the worse soon after her arrival. She experiences terrifying visions of her late husband, Joel’s abusive father, and begins exhibiting violent behavior. Joel begins to believe that something malevolent and supernatural has taken control of his mother. But with his own history of substance abuse and mental instability, can he trust his own perceptions? As Monika’s memories fade, Joel must confront the demons of his own past, dredged up by his return to the home where he grew up.