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.
Anna Kendrick
as Stephanie Smothers
Blake Lively
as Emily Nelson
Henry Golding
as Sean Townsend
Rupert Friend
as Dennis Nylon
Linda Cardellini
as Diana Hyland
Bashir Salahuddin
as Detective Summervile
Danielle Bourgon
as Grace, Stephanie's Mom
Kelly McCormack
as Stacy
Andrew Rannells
as Darren
Ian Ho
as Nicky Nelson
Joshua Satine
as Miles Smothers
Paul Jurewicz
as Bobby Chelkowsky
