Tales from the Crypt (1989) : 5x7

Reggie is a college jock who is trying to pass a history test. He asks the class bookworm Stella Bishop to help tutor him. She goes to Finely's house to to get the answer sheet, but when she gets there, Finely and Reggie lock her in a mummy's tomb. Finely double crosses Reggie by poisoning him. Finely goes back to check his work, and gets a big surprise. Stella is not dead. She has been charming the mummy by impersonating his dead girlfriend making the mummy jealous and Reggie and Finely really take the wraps.