HBO and A24 are developing a drama series based on “Angel Heart,” with Zac Efron attached to star and executive produce, according to reports from Variety and Deadline. The series is described as a one-hour drama adaptation tied to the 1978 horror novel “Falling Angel,” which was previously adapted into the 1987 film “Angel Heart,” directed by Alan Parker and starring Mickey Rourke and Robert De Niro. The show is written and executive produced by Zach Baylin, the creator of “Black Rabbit,” which both outlets connect to the project’s creative leadership. Deadline additionally reports that Jonathan Van Tulleken is set to direct. The announcements frame the project as a new take on the 1980s cult-classic material, while development details beyond the core team and premise are not specified in the provided reports. Both outlets agree on Efron’s involvement, HBO and A24’s roles, Baylin’s authorship and executive producing, and the source material lineage from the 1978 novel to the 1987 movie.