Stephanie, a dedicated mother and popular vlogger, befriends Emily, a mysterious upper-class woman whose son Nicky attends the same school as Miles, Stephanie's son. When Emily asks her to pick Nicky up from school and then disappears, Stephanie undertakes an investigation that will dive deep into Emily's cloudy past.

Twisty, twisted, and above all simply fun, A Simple Favor casts a stylish mommy noir spell strengthened by potent performances from Anna Kendrick and Blake Lively.