The search continues today for a Texas woman who vanished after attending a party a week ago.

Christina Morris was last seen in the parking garage of a shopping center in Plano, Texas. Friends and family have posted flyers and retraced her steps since her disappearance.

"Christina, wherever you're at, I miss you so much," her mother, Jonni McElroy, said through tears.

Surveillance video captured Morris, 23, walking with a friend in the parking garage at 4 a.m. last Saturday. But Morris was never seen leaving the garage.

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Investigators said there were no signs of foul play or a struggle near her car. Her last 15 phone calls went to her boyfriend, whom she lives with, but he never reported her missing, Morris' parents said.

They realized she was missing when her boss called.

"We were already behind the curve on this because [of] getting it four days late, so we had a lot of catching up to do," said David Tilley with the Plano Police Department.

Police said Morris' bank accounts haven't been accessed and her cell phone is off. Their best leads are the drivers of three cars seen in the parking garage that same morning.

"You can't tell any of the cars apart, which is really frustrating because I feel like that could be a big lead of ours," McElroy said. "Please, if you have her, I need my daughter back. I need her back. I'm begging you."

Police said the friend of Morris who was last seen with her isn't a person of interest.