I watched this film and, like many, was intensely disturbed and frustrated for Eva, the blame for the actions for her own child who she had great difficulty raising. It was, in the end, not really her fault yet the whole world seems to act as if it was.
The whole film is very clearly placed, figuratively, on the shoulders of Eva. We drift in and out of memories and day dreams in a way similar to her, a soft toy falling over in a memory shares the same foley as a basketball being bounced in the present. Her memories of La Tomatina are paired with the red-paint-filtered light coming in through her window. The sounds often do not match up exactly with what she is experiencing and this helps to get us in to the mindset of Eva, she is constantly disassociating, drifting in and out of reality, we are in her mind and so feel all this from her point of view. The most prominent example of this is the sounds of the sprinklers, a sound which has become intertwined with the memory of coming across the bodies of her husband and daughter. All of these pairings help to convey that every aspect of Eva’s life has been scarred by Kevin, everything is a reminder, be it by the looks and attitudes of people in the town or by sudden involuntary reminders.