She and her husband Charles Swartz had written a script, The Student Teachers but producer Larry Woolner wanted to make a vampire film after the success of Daughters of Darkness (1970).
Daughters of the American Revolution | McLeod's Daughters | Heart of Darkness | Daughters of Charity | Daughters of Charity of Saint Vincent de Paul | Sons and Daughters | Sons and Daughters (Australian TV series) | Edge of Darkness | Warcraft II: Tides of Darkness | United Daughters of the Confederacy | The Whisperer in Darkness | Daughters | With Fear I Kiss the Burning Darkness | When Darkness Comes | Under Cover of Darkness | The Seven Daughters of Eve | The Ghost and the Darkness | Star Trek Into Darkness | Our Lady of Darkness | Land of Silence and Darkness | Daughters of the Dust | Darkness Dynamite | Darkness | Beyond the Darkness | Sons and Daughters in a Time of Storm | Prince of Darkness | prince of darkness | McLeod's Daughters (TV movie) | Light in My Darkness | Lest Darkness Fall |