All eyes are usually on Paris Hilton when she hits the dance floor. But when she let loose to the beats of Lady Gaga at the Caribou Club in Aspen, Colo., on Dec. 28, another pretty blonde drew all the stares. "Paris was dancing with Brooke Mueller," says a partygoer. Charlie Sheen's wife lives in the same LA gated community as Paris -- but what left onlookers stunned was that Brooke was out dancing just days after her husband allegedly held a knife to her throat. "Brooke looked like she was determined to have a good time," says the partygoer, "and she did."

Brooke is also determined to make her marriage to Charlie work, no matter how dysfunctional it is. The violent Christmas Day incident sparked an infamous 911 call in which the terror-stricken mom, who was reportedly intoxicated at 8:30 a.m., told the operator, "I'm scared for my life, and he threatened me."

Standing by her man

Brooke, 32, took her first step toward fixing her marriage to Charlie, 44, when she asked criminal defense lawyer Yale Galanter -- who has represented O.J. Simpson -- to file papers in Aspen asking a judge to alter the protective order that was put in place so the two can have contact again.

Charlie's game plan

The kids are also a huge factor. "They have absolutely gorgeous little babies and will do all they can to work out their problems," says Galanter, referring to 10-month-old twins
Bob and Max. While Charlie's lawyers are staying mum about the children, an insider close to the actor says Charlie is terrified he'll lose them, and that's what's driving him to save his marriage.

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Photo Credit: Retna