Paranormal Activity 2 is a 2010 American found footage supernatural horror film directed by Tod Williams and written by Michael R. Perry, Christopher Landon and Tom Pabst.

[3] In August 2006, a "burglary" occurs at the home of Kristi and Daniel Rey, trashing their house and leaving only their infant son Hunter's bedroom untouched.

Daniel's daughter from a prior marriage, Ali, begins investigating the mysterious happenings; she discovers that humans can make deals with demons for wealth or power by forfeiting the soul of their first-born son, but if the deal is not fulfilled, the demon will stick to the family until another son is born — Hunter was the first male to be born on Kristi's side since the 1930s.

The violence escalates, as the family's German shepherd, Abby, is attacked by the demon and apparently suffers from a seizure.

A title card explains that Ali comes home from a school trip to find the bodies, and Katie and Hunter's whereabouts remain unknown.

Coming after the box office success of Paranormal Activity, distributor Paramount Pictures quickly pursued a sequel.

[4][5] Kevin Greutert, director of Saw VI, was slated to direct while Michael R. Perry was set to write the film in January 2010.

[6][7] Oren Peli, the writer and director of the first film, was not expected to be directly involved with the sequel, but approved of Perry's story.

Goldsman instead became involved as an executive producer and would help shape the story, while De Palma met with Perry and Jason Blum.

[11][12][8] Circumstances changed and De Palma moved on, leading to Paramount looking toward Brad Anderson and Greg McLean.

The consensus states that "Paranormal Activity 2 doesn't cover any new ground, but its premise is still scary—and in some respects, it's a better film than the original.

[26] Entertainment Weekly said the film "blends [shock and suspense] into what might be called shockpense"; reviewer Owen Gleiberman called it a "shivery-skillful, highly worthy fear-factor sequel" and wrote, "The images all point down, which is subtly disquieting, and each one is composed with enough wide-angle space and distance, and enough nooks and crannies, so that even when nothing is happening, the often dead-silent shots tend to grow scarier the more you look at them… It made me jump, sweat, and chew my fingernails.

[31] Paranormal Activity 2 was released on DVD/Blu-ray and video on demand/pay-per-view on February 8, 2011, and includes an unrated director's cut and deleted scenes.