After witnessing her parents tragic death Eli is forced to deal with the aftermath on her own. Her mind takes over to protect her. But is it really a protection?

iN-siDe is a film about Dissociative Identity Disorder.  

“Dissociation is a common coping mechanism, especially in the face of trauma. …  Many of us find ways to detach ourselves from painful or unpleasant experiences. However, people typically restore their usual perspective over time. Those with dissociative disorders experience persistent amnesia, depersonalization, derealization or fragmentation of identity that actually interferes with the normal process of working through and putting into perspective traumatic or stressful experiences.”

source: www.psychiatry.org