One of the most engaging and harrowing films I've seen since Possessor. Explores issues such as repressed sexuality, and how inexperience in a medical setting can be as destructive for the medic as for the patient. I'm really surprised this film got a 15 rating here in the UK. I was surprised to see so many 1 Star reviews, to be honest if your looking for jump scares don't bother. If you want to know how scary psychosis can be for the sufferer, then give it a watch.
Love how God speaks Welsh!