PEOPLE: Watch Sadie Sink Grieve a Younger Sister and Fall in Love in Emotional ‘Dear Zoe’ Trailer

Sadie Sink is leading an upcoming drama.

The Stranger Things and The Whale actress, 20, stars alongside Jessica Capshaw, Justin Bartha, Theo Rossi, Kweku Collins and Mckenzie Noel Rusiewicz in the upcoming film Dear Zoe, in which she plays a teenager struggling to cope with her younger half-sister’s death.

Dear Zoe follows Tess (Sadie Sink), her mother Elly (Jessica Capshaw), stepfather David (Justin Bartha), and little sister Emily (Vivien Lyra Blair) in the aftermath of the unimaginable loss of Tess’s other little sister, Zoe (Mckenzie Noel Rusiewicz),” reads an official synopsis for the upcoming film.

READ THE FULL STORY ON PEOPLE