An awkward office drone becomes increasingly unhinged after a charismatic and confident look-alike takes a job at his workplace and seduces the woman he desires.

Jesse Eisenberg

Simon James / James Simon

Mia Wasikowska

Hannah

Wallace Shawn

Mr. Papadopoulos

Yasmin Paige

Melanie

Noah Taylor

Harris

James Fox

The Colonel

Cathy Moriarty

Kiki

Phyllis Somerville

Simon's Mother

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