The 10-episode series was developed by Simon Kinberg and Audrey Chon for Genre Films under their first-look deal with Apple TV+, along with Bard Dorros for Anonymous Content.

The show is directed and executive produced by David Gordon Green, while creator David J. Rosen serves as writer, showrunner, and executive producer.

Apple TV+ first announced Tatiana Maslany's casting in the lead role in February 2025.

Jake Johnson and Dolly de Leon joined the starring cast in July 2025, followed by Charlie Hall, Kiarra Hamagami Goldberg, Jessy Hodges, Jon Michael Hill, and Nola Wallace as series regulars in August 2025.

Brandon Flynn and Murray Bartlett joined the cast in recurring roles as late as February 2, 2026, just months before the series premiered.

Principal photography was reported to be underway in October 2025, with filming taking place on location in Queens, New York, the same borough where the story is set.

The series holds a 93% approval rating on Rotten Tomatoes based on 58 reviews, with an average score of 7.4/10, and a Metacritic score of 72 indicating 'generally favorable' reviews.

Critics such as Angie Han of The Hollywood Reporter singled out Tatiana Maslany's naturalistic performance and Murray Bartlett's range from warm to icy for particular praise.