In Insidious: Out of the Further, Gemma is a young mother raising her daughter in the house where she grew up. When she discovers she can enter The Further — the shadowy realm of lost souls at the heart of the Insidious universe — she uncovers a terrifying power: she can bring what lives there back into the real world. As something evil begins hunting her, the boundary between the living and the dead starts to collapse, turning our world into a playground for demons.