A 21st-century romantic thriller centered around a relationship that gets taken too far, You explores the line between passion and obsession and asks, "What would you do for love?" When a brilliant bookstore manager (Penn Badgley) crosses paths with an aspiring writer (Elizabeth Lail), his answer becomes clear: anything. As he uses the internet and social media to gather the most intimate of details to get close to her, a charming and awkward crush quickly becomes obsession when he quietly and strategically begins to remove every obstacle - and person - between them. You also stars Luca Padovan, Zach Cherry and Shay Mitchell, with a special guest appearance by John Stamos. From executive producers/writers Greg Berlanti and Sera Gamble, and based on Caroline Kepnes' best-selling novel