At a drive in flea market a woman, Kim (played by Sue Lyons) (yes, Lolita!) buys a ugly, squatting, cyclops idol. Unbeknownst to her, it is also possessed. Returning home in her excellent '68 Carmaro convertible, which has cragar mag wheels and side pipes, oh and its painted BLACK! Well, she returns home to her wheelchair bound husband Marc (played by Jose Ferrer) who, filled with bitterness, blames her. In his plot to kill her, he throws her out ot the house.As Kim departs, she attaches the idol to her keyring. Driving down the canyon road, Marc's doberman pincher leaps into the car, trying to maul Kim. She crashes, yet survives with amnesia. The dog is thrown clear of the wreck. Unconscious in the hospital, she is attended to by Dr. Gregg (John Ericson). In a seperate plot, Kim's black Camaro drives itself through the Californian country side, running people off the road, with many larger and larger explosions. The explosive work and driverless car are done pretty well for 1976 standards. In this encounter a sheriff's deputy trades light quarter panel dings and flips over. On the news Marc is aware of Kim being found and in the hospital in a catatonic state. He sneakily gets into her room and removes her IV. In the separate plot the black Camaro takes out 3 police cars.
Dr. Gregg contacts a professor of cultural anthropology played by-John Carradine (!!!) to ask him about the idol on the keyring. Unsurprisingly, it seems to be a Kazah, a deity connected to very bad things. Meanwhile, the Camaro takes out a three car police roadblock. Dr. Gregg decides Kim can go home with his head nurse Kathy, played by Leslie Parrish, the alcoholic wife in Giant Spider Invasion. The Professor puts Dr. Gregg in contact with an expert on the idol, who turns out to be...MARC Kim's husband! While meeting with him, Marc asks to keep the idol for further study. Dr, Gregg calls to ask Kim if that's okay, Marc sneakily gets the phone number. He also removes the idol outer shell and it's even uglier underneath. That night Marc is awoke as his motorized wheelchair (possessed by the idol/Kim) smashes through his bedroom door and kills his doberman pincher. Nurse Kathy witnesses Kim in possessed mode, which is pretty creepy, calls Dr. Gregg. Kim's Camaro, in an embarrassment of "Chips"
riches, takes out a half dozen cars, a motorcycle cop and a gas station, filmed in beautiful slow motion pyrotechnics.Marc having Kim's phone number tricks her into meeting with him and drives her to their house. There he confesses of being her husband, trying to kill her with his dog and locks her in a running sauna. Kim stupefyingly amnesiac still doesn't remember anything! Dr.Gregg meets with the scruffy, seasoned police lieutenant as Kim's missing car is brought to the impound lot. We are never sure if the Camaro causing all the destruction is the same car, or not. But Kim's keyring/idol starts it right up. Dr. Gregg notices the car registered to Marc, so he bolts and takes off.Kim sweating away in the sauna,gains control of the Camaro and sends it off towards the house. On the way, we get a blurry recap of all the great destruction of cars destroyed and people killed! AND-and there's even more cars, police cars, people killed, briefly covered. Night has fallen, Marc goes out (in wheelchair!) to confront the possessed Camaro with a shotgun. He does manage to shoot the car, one hitting the radiator. Then, instead of going inside the house, Marc goes into the surrounding property in his wheelchair. Dr. Gregg finally arrives, searches the house, finds Kim fully possessed in the sauna and rescues her. The Camaro rather woozily now pushes Marc into a ditch and with one last rev, jumps on top of him and explodes. Dr. Gregg and Kim leave the house, as of course, the police arrive.