"It's like 'The Big Chill,' but with an orgy at the end," laughed co-star Lake Bell when we caught up with her at the premiere of her latest film, "Pride and Glory." "Or is there? They invite you over for it, but whether it happens, that's a whole 'nother can of worms."

Bell's character Alison is a pretentious psychiatrist from the Upper West Side, and is against the orgy taking place.

"My character has her own issues," Bell said. "She sort of wants to dismiss the fact that she grew up on the Upper West Side and she wears bangles from Marrakesh to kind of prove her earthiness.' But she's actually not for the orgy. She thinks it would be bad, given that we're all best friends."

The group of friends includes Leslie Bibb, Will Forte, Martin Starr, and Lindsay Sloane, who plays a high school teacher named Laura who tries to get the group to go to Bible study (but ends up at the party anyway). So do a lot of unexpected types, such as a man on a leash -- wearing a dog collar with spikes -- led by a dominatrix in leather.

"Obviously, [Alison] is the voice of reason," Bell said, "but of course then she caves in."

Is this an "Orgy" you'd be into attending? Chime in below.