Sun Choke (2015)

After a traumatic psychotic break, a woman named Janie turns to an unconventional therapy called 'Sun Choke' to regain her sanity. Under the care of her strict nanny Irma, Janie follows a strict regimen that involves isolation, strange rituals, and invasive treatments. As she becomes more obsessed with her caretaker, Janie's grip on reality begins to slip further, leading to a shocking climax.