Dracula A.D. 1972

In 1872, Count Dracula (Christopher Lee) and his nemesis Lawrence Van Helsing (Peter Cushing) battle on the top of a runaway coach. The carriage crashes and Dracula is partly impaled by one of the wheels. In the struggle, Van Helsing manages to fully push the wheel into the vampire's chest, staking him. This done, Van Helsing collapses and dies from his own wounds. At that moment, a follower of Dracula (Christopher Neame) arrives, collects Dracula's remains and, a few days later, buries them near Van Helsing's grave at St Bartolph's Church.

A century later, Jessica Van Helsing (Stephanie Beacham), granddaughter of occult expert Lorrimer Van Helsing (Cushing) and descendant of Dracula's old nemesis, and Johnny Alucard (Neame) who closely resembles Dracula's disciple from 1872, are among a group of young hippies. Alucard persuades Jessica and the others to attend a black magic ceremony in the now abandoned, deconsecrated St Bartolph's, where he performs a bloody ritual involving one of their group, Laura Bellows (Caroline Munro). Jessica and the others flee in horror, after which Dracula is resurrected and kills Laura. Laura's body is discovered, drained of blood, and a police investigation begins which is headed by Inspector Murray (Michael Coles).

Murray suspects an occult element and interviews Lorrimer, who is shocked to learn the details of Laura’s death. He realises that Alucard (whose name is Dracula written backwards) is a disciple of Dracula, and that the Count must have returned. Meanwhile, Alucard brings another of Jessica’s friends, Gaynor Keating (Marsha Hunt), to St. Bartolph's, where she is killed by Dracula and Alucard volunteers to become a vampire. The vampiric Alucard kills a passerby and lures Jessica’s boyfriend, Bob (Philip Miller), to a café they frequent, where he turns him into a vampire as well. While Lorrimer is out, Bob goes to the Van Helsing house and persuades Jessica to come to the café, where he and Alucard capture her and take her to Dracula.

Aided by one of Jessica's friends, Lorrimer tracks Alucard to his flat and battles him. Alucard accidentally kills himself with the running water in the bathroom shower. At St Bartolph's, Lorrimer finds Bob's dead body, slain by sunlight before he could reach his resting place, and Jessica in a trance, with Dracula planning to take his revenge on the Van Helsing family by turning her into a vampire. Lorrimer sets a trap for Dracula by placing a pit of stakes underneath the graveyard and waits for him to return at nightfall. The two have a struggle in which Lorrimer attempts to kill Dracula with a silver knife, but the knife is pulled out by Jessica, still under Dracula’s command. As the pair go outside, Lorrimer throws holy water at Dracula, which burns his hands and causes him to fall into the pit of stakes. Realising Dracula is still barely alive, Lorrimer uses a shovel to push Dracula into the stakes even further. Dracula dies, his body crumbling into ashes, and his spell over Jessica is broken. As Jessica embraces her grandfather, the title "Rest in Final Peace" is shown.