Tales from the Darkside (1984)

S3E14 My Ghostwriter: The Vampire

Title: My Ghostwriter: The Vampire Plot: Struggling author Peter, whose vampire tales are declining in quality, acquires a coffin to spark his creativity, only to discover it houses Count Draco. After a tense encounter, they form a pact: Draco will share his life stories for Peter to transform into novels. As Peter's fame and fortune soar, he becomes greedy and opts not to share the wealth. In a twist, with the help of Peter's assistant, Draco turns the tables, eliminating Peter and forging a new partnership with the secretary for future literary success.