You is an American psychological thriller television series based on the books by Caroline Kepnes, developed by Greg Berlanti and Sera Gamble, and produced by Berlanti Productions, Alloy Entertainment, and A+E Studios in association with Warner Horizon Television, now Warner Bros. Television.
The first season, which is based on the novel You, premiered on Lifetime in September 2018, and follows Joe Goldberg, a bookstore manager and serial killer who falls in love and develops an extreme obsession. The season stars Penn Badgley, Elizabeth Lail, Luca Padovan, Zach Cherry, and Shay Mitchell. Lifetime announced in July 2018 that You had been renewed for a second season, based on Kepnes’ follow-up novel Hidden Bodies. The series later moved to Netflix and the second season was released in December 2019. The season follows Joe as he moves to Los Angeles and falls in love with local heiress Love Quinn. For the second season, Ambyr Childers was upgraded to a series regular, joining newly cast Victoria Pedretti, James Scully, Jenna Ortega, and Carmela Zumbado.