Very much like an episode of 'American Horror Story: Freak Show.'

Here, we meet a young woman who's checked herself into a mental asylum. She claims it's mostly because she needs to hide from her sister, who'll be coming to get her. Her doctor believes this to be a delusion, but soon enough, the sister does indeed turn up - and her behavior is somewhat suspicious.

However, the doctor's sudden willingness to break all professional protocols and go haring off on a wild goose chased based on a slender thread of evidence strains belief.

It does culminate in an eerie - and nasty - finale, though! ( )