Is 'The Vampire' based on a book?
No. The Vampire was filmed from a screenplay written by American screenwriter Pat Fielder.
What is 'The Vampire' about?
When kindly, small town Dr Paul Beecher (John Beal) mistakenly ingests an experimental drug made from the blood of vampire bats thinking that it is his prescribed medication for migraines, he begins to transform into a vampire, and people around him begin dying of 'capillary disintegration.'
Paul suspects himself. He asks nurse Carol Butler (Coleen Gray) to keep him company one night but gets called away to surgery. At 11pm, he transforms. He follows Carol home but she gets away, so he kills old Mrs Carrie Deeds (Hallene Hill) instead. The next night he stays with Dr Beaumont (Dabbs Greer) but, when Beaumont takes away the pills, Beecher goes crazy, kills him, and stuffs his body in a furnace. The next morning, Paul decides to kill himself. Carol shows up early for work and tries to stop him. When they fight, Paul transforms. He pursues Carol into the woods. Sheriff Buck Donally (Kenneth Tobey) hears Carol's screams and follows them. Paul is shot three times by the police sergeant as he struggles with Donally. In the final scene, as Paul dies, his grotesque visage returns to normal.