Bill Hader to Direct Horror Film They Know

Bill Hader, the Emmy-winning actor and comedian best known for his work on Saturday Night Live and HBO's Barry, is set to make his feature film directorial debut with the horror project They Know. Production on the film, in which Hader will also write and star, is scheduled to begin this spring in Los Angeles.

The story follows a divorced father, played by Hader, who becomes increasingly suspicious of his ex-wife's new boyfriend, a mysterious figure exerting an unusual influence over their children. Hader developed the original concept alongside Duffy Boudreau, his longtime collaborator from Barry, and penned the screenplay himself. The film marks a shift for Hader into directing a full-length feature, building on his experience helming 18 episodes of the dark comedy series.

MRC, the studio behind recent releases such as Wuthering Heights and Saltburn, will finance and produce They Know. Hader and producer Bob Graf are overseeing production through Hader's Hanarply banner, with Alyssa Donovan serving as co-producer. No additional casting details or release date have been announced, though industry observers anticipate a possible 2027 rollout given the spring start.