In Amityville, New York, the same town where Ronald DeFeo Jr. murdered his family in 1974, a Catholic priest is shot to death in a confession booth in his parish church.

After an outbreak of apparent poltergeist activity occurs throughout the house, the group all become convinced the home is haunted, with the exception of Marvin.

At the tavern, Marvin speaks to two older men regarding the town's paranormal activities and feels it is nothing but a case of mass hysteria.

At the same time, Debbie encounters Mrs. Moriarty again in the bathroom, where she obscurely rants and raves about the priest who once lived in the home.

Marvin begins attempting to decipher Debbie's dream diaries, which Bill realizes consist of Latin exorcism writing.

Meanwhile, Debbie suffers a nightmare in which she witnesses the truth of the priest's murder: He was shot to death by his illegitimate son, conceived during a sexual tryst with a female parishioner, who sought vengeance for being abandoned.

[5] Vinegar Syndrome (under license from Canadian International Pictures) released the film for the first time on Blu-ray on October 25, 2022, making it exclusively available through their online store until it will be distributed by other retailers beginning November 29, 2022.

[6] Cavett Binion of the website AllMovie wrote of the film: "This fifth installment in the tiresome horror series is so far removed from its creatively depleted source material that one wonders why the filmmakers bothered to use the "Amityville" reference in the title.

In fact, there is some question as to whether the haunted house featured here is even supposed to be the same accursed residence as established in the four prior chapters.