“Paranormal Activity 2,” while offering some advancements over its predecessor, is ultimately let down by a disappointing finish. The initial film in the series was more impactful due to its gradual build-up of suspense and anxiety; this installment feels rushed at times. The narrative itself isn’t inherently flawed, but it loses its way when considered alongside the first movie. The original presented a more captivating idea—a demon displaying something akin to fondness for Katie—instead of relying on familiar tropes about demonic agreements. On its own, "Paranormal Activity 2" is an acceptable horror film that, similar to the earlier one, does well with simplicity. Those who enjoyed the first “Paranormal Activity” movie will likely find enjoyment in this one too, and even those who weren’t fans of the initial installment might consider watching it because it's distinct enough to potentially win them over.

Source on TMDB