Many have tried to figure out exactly what is going on behind Blake Lively’s glossy smile and flaxen good looks, and Anna Kendrick is just the latest to try. In A Simple Favor, directed by Paul Feig (from his “darker side,” according to this new trailer), Kendrick plays a woman whose friend (Blake Lively) goes missing. It seems like Lively’s a spy, given her ridiculously expensive home, fondness for fancy liquor and fancier suits, but maybe she just makes a lot of money from a secret lifestyle website, and it’s a secret she wants to … preserve? Henry Golding, Andrew Rannells, Linda Cardellini, Jean Smart, and Rupert Friend co-star. A Simple Favor opens September 14.