'The Playboy Club's' Amber Heard gets all mysterious on us

"The Playboy Club" establishes Amber Heard's character as a bit of a mystery -- and Heard is not about to go blabbing about her to the likes of us.

"She's got a somewhat dubious past behind her," Heard says of Maureen, the Playboy Club bunny she plays in NBC's new drama, which is set in 1963. "What I love about Maureen is we don't know much about where she comes from, but we have to figure it's important. ... We get the sense that there's a lot to learn about her."

Heard herself has been learning about the era Maureen lives in, and she's excited to help bring it to life on the show. "It was a different time for women, it was a different time for what we expected of women," she tells Zap2it in the video below. "It was a different time for our silhouettes, for fashion. ... It's a texturally rich time to tell a story, and I'm excited that ours takes place in such a setting."

Heard also had a little bit more -- but not too much; again, the mystery -- about what you can expect from "The Playboy Club," which will air at 10 p.m. ET Mondays in the fall. Watch the video for more.