CrypticParrot’s review published on Letterboxd:
Definitely enjoyed this Spanish thriller. An already disturbed and troubled woman becomes slowly more unhinged and deranged. The pacing here is really good and slowly ratchets up the tension as we see Montse lose complete control.
This starts kind of as a character study but by the last half hour it really comes into its own and the horror elements are unleashed as the apartment turns into a full blown hell scape.