Felix's suspicions are heightened when his neighbour's dog enters the house and appears to hear noises from upstairs too.

He naps in his car until he is awakened by two children who are looking at a picture that Felix drew of the strange man.

Felix becomes infatuated with Claudia and manages to speak to her by hiding in plain sight at a surprise birthday party.

Eventually, Felix alerts Claudia and Martin's friend Bruno to his presence by breaking a vase and finding a key to the locked door of the basement.

Felix climbs upstairs and discovers that the "man" he had shot a couple of nights ago was actually Vera who, dying on the floor, reveals she is pregnant.

[2] Mónica López clinched the Best Actress Award at Sitges for her double role in the film.