Insidious is a 2010 supernatural horror film directed by James Wan, written by Leigh Whannell, and starring Patrick Wilson, Rose Byrne, and Barbara Hershey. It is the first installment in the Insidious franchise, and the third in terms of the series' in-story chronology. The story centers on a married couple whose boy inexplicably enters a comatose state and becomes a vessel for a variety of demonic entities in an astral plane. Insidious had its world premiere on September 14, 2010, at the 2010 Toronto International Film Festival (TIFF) and received a wide theatrical release on April 1, 2011, by FilmDistrict. The film is followed by a sequel, Chapter 2 (2013), and two prequels, Chapter 3 (2015) and The Last Key (2018). Plot Married couple Josh and Renai Lambert, their boys Dalton and Foster, and infant daughter Cali, have recently moved in to a new home. One evening, Dalton sneaks away to explore the attic, when he encounters a frightening entity and falls from a step stool. The next day, he inexplicably slips into a coma. Three months after a treatment without result, Renai and Josh take Dalton back home. The family starts to experience frightening paranormal events. Renai begins hearing voices over the baby monitor when no one is in Cali's room and Foster says that Dalton sleepwalks at night. One night, they hear noise at the door, so they lock it and set the alarm. Renai sees a disturbing figure in Cali's bedroom, and the security alarm goes off. Josh has visions and works late. The nurse visits to check on Dalton and Renai finds a bloody hand print on Dalton's bed. Josh returns home and has more visions. After Renai is attacked by the entity, the Lamberts decide to move, believing the house to be cursed. In the new house, however, the supernatural activity continues. Renai sees a dancing young child dressed in a period attire, then follows the child's laugh to a moving rocking horse. In Dalton's room, the child torments Renai. Josh's mother Lorraine arrives and explains her frightening dream: visions of a demon in Dalton's room. She is then terrified when she sees a red-faced demon behind Josh. She calls psychic Elise Rainier and her paranormal investigators Specs and Tucker. One of the investigators sees a vision of a woman while investigating the house. In Dalton's bedroom, Elise sees the same red-faced demonic creature that