The mystery of the dual plot line is also a trick ? a very cleverly executed one, which baffles the audience by exploiting their ingrained responses to certain cinematic conventions. I didn't figure it out until moments before the big reveal.
—Andy Klein Christian Science Monitor
The effect is both visceral and thoughtful, demonstrating a knack for cinematic dread rarely shown by today's manipulative horror meisters.
—Robert Abele Los Angeles Times
The monster that creeps into the satisfyingly shivery horror film Intruders doesn't just hide under the bed, it also lurks in dark corners, including those dimmed by your own imagination.
—Manohla Dargis New York Times
Owen devotes himself to the horror-flick role of a father battling his daughter's monsters with the same trademark efficiency and intensity he brings to every project, whether pulpy like Killer Elite or pure like Shadow Dancer.
—Lisa Schwarzbaum Entertainment Weekly
...tentative and weak whenever it isn't simply baldly derivative. It's old-fashioned to the point of ossification.
—Scott Tobias Onion AV Club
A fitfully creepy, overly protracted chiller that plays more like a noncommittal sampler of horror techniques than the vivid nightmare it's clearly aiming for...
—Justin Chang Variety
Juan Carlos Fresnadillo's Intruders looks great and has a promising opening, but this atmospheric Spanish psychological thriller is otherwise pretty underwhelming. 5
—Lou Lumenick New York Post
Where the film falls apart is in trying to steer this nightmare out of dark fantasy into the cold light of logic.
—David Rooney Hollywood Reporter