Release (2017)

Karla is a doctor determined to save her brother, Blake, from a horrible illness that has left him in a coma. It's clear to everyone but her however, that Blake cannot be saved and it's time to let him go. Unwilling to give into the notion of letting her brother die, Karla ventures into an abandoned part of the hospital to retrieve a drug that will keep him in his vegetative state, when she encounters something in the darkness that will force her to change.