Her husband, Isaac, insists she stop investigating, as her doctor has informed him that Sara had eye surgery that was not successful.
She is told she must wear bandages to protect her eyes from light for two weeks, and the morgue agrees to keep Isaac's body so she can see him to say goodbye.
Four days before Julia is due to remove her bandages, an unseen man almost succeeds in drugging her while she sleeps; however, she wakes, panicked, and accidentally hits the intruder.
While Iván is out, Julia hears the voice of Blasco's shy daughter, Lía, who tells her that Iván is the "invisible man" who tormented and blinded Sara by ruining her operation, forced Isaac to write the fake suicide note before killing him, and has walls covered with photographs of Julia and Sara.
Julia exits the bathroom and sees Iván's walls covered with photographs of the twins as well as Lía's bloodied body.
He believes her momentarily before leading her to the body of the real Iván; Julia's scream betrays the fact that she can see.
The website's critics consensus reads: "Smart, suspenseful, and visually distinctive, Julia's Eyes marks another modern Spanish thriller that quickens the pulse while engaging the mind.
"[15] Philip French of The Guardian wrote, "Using blindness as a plot device, a metaphor for social awareness and as a numinous experience that romantically links minds, it's a fascinating, broken-backed picture full of riveting twists and dubious psychology.
"[17] Philippa Hawker of The Age wrote, "Julia's Eyes becomes a little incoherent as it plunges towards resolution, but it's unerringly stylish and whole-heartedly suspenseful along the way.
Morales toys with red herrings, references Hitchcock, amps up the tension, spills blood; he also plays with the camera's ability to reveal and conceal simultaneously.
In the end, although the film takes on the traits of a classic 'don't go back inside the house' slasher movie, it's the quiet, slowly-building confrontations, one on one, that linger in the memory.