Read some e-vil e-mails and send in one of your own at the official eOne Passion Tumblr. Indiewire has the official explanation from eOne:
"In Passion, Christine (Rachel McAdams) is a powerful executive while Isabelle (Noomi Rapace) is her hard-working prodigy. In a dog eat dog world, competition is going to get fierce and coworkers are bound to get their toes stepped on if they aren't on top of their game. Things can get nasty real fast if something goes awry. E-vil Emails is the worst of the worst in the workplace: tales of lost tempers, backstabbing, humiliation, and more. While this kind of behavior is surely something to experience On Demand and in theatres, we've created a place where these stories can come to life. We're inviting you to submit your nastiest, most embarrassing, incriminating, and horrible work emails you've ever received or sent. Surely you have some drafts in your inbox consisting of things you wish you could really say to your boss. There must be a time where a coworker threw you under the bus and you just wish you could anonymously vent about it! Don't hesitate, send your e-vil emails our way to firstname.lastname@example.org."
(Thanks to Lindsey!)