Trailer for Lifetime's new series YOU (ft Penn Badgley & Shay Mitchell)

When a brilliant lonely boy bookstore manager crosses paths with an aspiring socialite writer, his answer becomes clear: anything. Using the internet and social media as his tools to gather the most intimate of details and get close to her, a charming and awkward crush quickly becomes obsession as he quietly and strategically removes every obstacle – and person – in his way.

The series also stars Elizabeth Lail, Luca Padovan, Zach Cherry with a special guest appearance by John Stamos.

The brand new series YOU , premieres September 9th at 10pm ET/PT on Lifetime