Critics score:
Reviews provided by RottenTomatoes
Tom Buckley, New York Times: Read more
Gary Arnold, Washington Post: He Knows You're Alone inspires sustained, high-decibel shrieking when Mastroianni cuts loose, but it ingratiates itself in a more congenial way by being so mischievosly movie-crazy and by swift strokes of characterization and funny romatic by play. Read more