Ruth Madoff Ruth Madoff

Ruth Madoff, the wife of convicted Ponzi scheme mastermind Bernie Madoff, told 60 Minutes' Morley Shafer that the two attempted to commit suicide on Christmas Eve 2008. "I don't know whose idea it was," Madoff says, "but we decided to kill ourselves, because it was so horrendous what was happening. ... I said, 'I just can't go on anymore.'"

They failed after taking Ambien. How many? She can't recall. But she was glad they woke up the next day.

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The episode, which will air Sunday at 7/6c on CBS, is the only interview Madoff has given about the crime that that defrauded investors of billions.Mrs. Madoff told The New York Times that she's finally agreeing to talk because her son Andrew asked her to help promote a new authorized biography,

Truth and Consequences: Life Inside the Madoff Family, to be published Monday. [Another son, Mark, committed suicide on the second anniversary of his father's arrest.]See a clip of the interview below. Will you be tuning in?