“A Simple Favor” is finally coming to theaters. Blake Lively and Anna Kendrick star in this mysterious book turned movie. The movie is about two polar opposite moms that each have their own hidden secret. Lively, who plays Emily, will actually end up missing and Kendrick, who plays Stephanie, will try to find her while uncovering secrets about Emily.

“The neo-noir mystery is aiming for a mid-teens launch around $12 million to $15 million from 3,000 locations,” according to Variety. 

Some may remember how early in May this year, Lively deleted all of her photos leaving fans confused. Then, she started only following Instagram accounts that had the same name as her character in the upcoming “A Simple Favor” movie. Lively is back at it again posting little teasers from the movie for her fans on Instagram earlier this week.

The film currently has a 77 percent, according to Rotten Tomatoes. This movie is set to premiere to the public Sept. 14.