AThe Haunting in Connecticut is based on In a Dark Place:The Story of a True Haunting (1992), co-authored by horror writer Ray Garton, paranormal investigators Ed and Lorraine Warren, and Al and Carmen Snedeker. The story was brought to the screen by writers Adam Simon and Tim Metcalfe. The Haunting in Connecticut 2: Ghosts of Georgia was released in February 2013.
AMatt awakens with marks all over his body. Sara races him to the hospital, where the doctor says Matt doesn't have long to live. Meanwhile, Reverend Popescu (Elias Koteas) realizes that he's made a terrible mistake about the eyelids. Aickman didn't remove the lids to make the dead see but to make them unseen. Jonah (Erik J. Berg) was trying to help them. However, now that Jonah's remains have been removed from the house, only the dead remain, and they're angry. One of them attacks Wendy while she's taking a shower. Matt escapes out the window of his hospital room and returns to the house. He grabs an axe, locks Wendy and the kids out of the house, and starts chopping down the walls. Dozens and dozens of stacked bodies begin pouring out. He then sets the house on fire. The spirits of the bodies begin appearing, and they all lay their hands on Matt. Sara, Peter, and the police arrive at the house as it goes up in flames. Sara hears Matt's screams and finds him lying on the floor. With fire all around them and more bodies falling from the ceiling, Sara pulls Matt under a table for refuge. Matt collapses in her arms. The police break a hole in the wall and help Matt and Sara outside. Paramedics work on reviving Matt while the Reverend stands by praying. Suddenly, Matt draws a breath and sits up. The Rev and Jonah look each other in the eyes. As the house continues to burn and ashes can be seen flowing out of it, Sara is heard in a voiceover, saying, "I don't really care if anybody believes me or not. I know what happened, doctors and nurses know, my family knows, and my son is alive and well. That's all that matters. They say that God works in mysterious ways. They just don't tell you how mysterious those ways can be. Consider yourself warned." Just before the credits roll, there is an epilog that reads: Matt Campbell's cancer disappeared and he made a full recovery. The Aickman house has been rebuilt, restored, and resold. No subsequent occupants have complained of any disturbing manifestations.