10-year-old Cameron Lansing is an introverted, solitary boy with psychic abilities who lives with his father, Owen Lansing, a research scientist. Owen has subjected Cameron to intense psychological testing from a young age in an effort to unbury the hidden powers of the human mind. During a series of mysterious and bizarre circumstances in their rural house one night, Owen is decapitated by a machete, yet the authorities can find no evidence of foul play and rule it out as an accidental death believing he simply fell on it. Cameron goes to live with his mother Dory Lansing and her obnoxious actor boyfriend Bob Froelich in Los Angeles. Both Dory and Bob are unaware of Cameron's paranormal abilities. Sergeant Sam Taliaferro of the Homicide Division of the LAPD has sleeping trouble and a recurring nightmare which is affecting his work. Taliaferro's partner, Detective Pete Groom complains about Taliaferro's frequent bouts of absent-mindedness in the line of duty caused his lack of sleep, and so Taliaferro is ordered to go see a psychiatrist who works with the department, Dr. Nora Haley. When Bob Froelich is horrifically murdered in Cameron's room, having been thrown out of the second-floor window with his eyes burnt out of the sockets, Sam Taliaferro, Pete Groom and Nora Haley are put on the case. As they investigate the perplexing case, Taliaferro befriends Cameron and realizes that deaths are occurring always around the boy, and that his nightmares seem to be linked to the boy. Under her counselling sessions Nora Haley also realizes that the boy has paranormal abilities, even being able to foresee future events. It also becomes apparent to Taliaferro that whatever Cameron concentrates on hard enough or focuses on is manifesting itself into reality. Cameron plays an imaginative game with a figurine his father gave to him he calls the "Deceptor", actually an ancient figure of a Mayandemonic entity said to be terrible beyond description in Owen Lansing's texts. Cameron's imagination makes the creature real and it takes up residence in Cameron's bedroom closet. Soon, numerous inexplicable and gruesome deaths are occurring around the closet in Cameron's room, and people who have already died seem to be mysteriously reappearing in an undead state. Bob Froelich is horrifyingly resurrected in Cameron's closet and murders Detective Pete Groom when he looks inside the closet. Taliaferro and Haley seek out Owen Lansing's assistant, Professor Ben Majors at his home in the woods, where they learn the truth about Cameron. Taliaferro is stalked through the woods by Pete Groom's ghost, who warns him that the evil is "out of the closet now." The demons soon wish to destroy Cameron, thus severing their link to limbo and sealing them within reality and in our world. Majors kidnaps Cameron and takes him back to Cameron's house where Majors is then murdered by the demon, his blood boiling in his veins. Only Sam Taliaferro and Nora Haley are able to protect Cameron. Cameron goes back to his room to face the demon in the closet once and for all and destroy it before Cameron loses his powers to it.
Production
The screenplay of Cameron's Closet was written by Gary Brandner, who had previously written both the trilogy of novels and the film adaptations of the acclaimed The Howling. The special effects of Cameron's Closet were done by Carlo Rambaldi, who had previously designed the eponymous character in E.T. the Extra-Terrestrial and the mechanical head-effects for the creature in Alien, for both of which had earned Rambaldi an Oscar. Rambaldi also worked on Profondo Rosso , King Kong, Close Encounters of the Third Kind, Dune, and King Kong Lives. Cult horror film director William Lustig has a cameo in the film as a pornographic film director being booked by the police.