The family—including sisters Katie and Kristi, their mother Julie, and her boyfriend Dennis—moves into a new home in California. Dennis, a wedding videographer, begins noticing strange occurrences, such as unexplainable noises and Kristi talking to an invisible friend she calls "".

To capture these events, Dennis sets up cameras throughout the house, including a unique on a fan base in the kitchen. Escalating Activity

In 1988, young sisters Katie and Kristi befriend an invisible entity called Toby, who resides in their home. Review: Paranormal Activity 3 - Flixist

The story of Paranormal Activity 3 serves as a prequel to the franchise, taking place primarily in . It follows young sisters Katie and Kristi as they encounter a malevolent entity they believe is an imaginary friend . The Setup (1988)

As the cameras roll, the "activity" becomes increasingly violent: Paranormal Activity 3 (2011) - IMDb