Hospicio

After surviving what seems to be a drug-related incident that left her sister, LIAN, in a coma, LESLIE, a budding 20-something artist, is left in deep grief. With great guilt, Leslie is forced by her parents to go to a rehabilitation facility to recover from her drug dependency. As Leslie stays longer, she gets to uncover even more mysteries and secrets. She would later realize that the promised change is actually more sinister than it seems, and she has to do something before it's too late.

Source: IMDb