Things couldn't be better for Derek Charles. He's just received a big promotion at work, and has a wonderful marriage with his beautiful wife, Sharon. However, into this idyllic world steps Lisa, a temporary worker at Derek's office. Lisa begins to stalk Derek, jeopardizing all he holds dear.
Idris Elba
as Derek Charles
Beyoncé
as Sharon Charles
Ali Larter
as Lisa Sheridan
Jerry O'Connell
as Ben
Christine Lahti
as Detective Monica Reese
Bruce McGill
as Joe Gage
Matthew Humphreys
as Patrick
Scout Taylor-Compton
as Samantha
Bonnie Perlman
as Marge
Richard Ruccolo
as Hank
Bryan Ross
as Security Man
Nelson Mashita
as Doctor
