Tales from the Crypt (1989)

S4E3 Beauty Rest

A fiercely ambitious aspiring model is consumed by jealousy when her roommate secures a role she believed was hers. In a fit of rage, she coerces her roommate into a dangerous overdose, then seizes the opportunity to claim her spot. However, her victory is short-lived as she becomes the target of another envious competitor, leading to a deadly confrontation. With her rivals eliminated, she finally achieves her dreams, only to uncover a startling secret about the talent competition that threatens to shatter her triumph.