VIDEO: Watch the Trailer for Upcoming Mystery Thriller A SIMPLE FAVOR Starring Blake Lively & Anna Kendrick

A Simple Favor arrives in theaters September 14. Watch the newly released trailer below!

A SIMPLE FAVOR, directed by Paul Feig, centers around Stephanie (Anna Kendrick), a mommy vlogger who seeks to uncover the truth behind her best friend Emily's (Blake Lively) sudden disappearance from their small town. Stephanie is joined by Emily's husband Sean (Henry Golding) in this stylish thriller filled with twists and betrayals, SECRETS and revelations, love and loyalty, murder and revenge.

A Simple Favor is based on the novel of the same name by Darcey Bell. The film stars Anna Kendrick, Blake Lively, Henry Golding, Andrew Rannells, Linda Cardellini, Jean Smart, and Rupert Friend.