Too bad I didn't see what other people say they see in this film.
The invisible Guest tries to hard to be suspenseful and create shocking scenes to the audience but fails in every aspect. The ending does not detract from it but does not even save it completely. Spanish films like these have been made repeatedly and do not even bring anything new to the genre.
Mario Casas is not a good actor but he is just a handsome man nothing more, anyway, this is perhaps the best film he has appeared in his entire filmography.
Anyway, it's nothing special or memorable for me at all. Sometimes it's not always good to put your hopes in a film like this because they end up leaving you with a big gap and The Invisible Guest is one of them.