Actress Mischa Barton Suffers Scary Meltdown After She Claims Someone Slipped Her Date Rape Drug

'The O.C.' star has a history of erratic behavior.

Disturbing video of Mischa Barton has emerged, showing the actress yelling incoherently and cursing outside her West Hollywood home.

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In the video, obtained by TMZ, she can be seen screaming: “I don’t want anybody to know!”

The video, apparently shot outside the former O.C. star's home last week hears her screaming: “Oh, my mother, I always knew it. Oh, you f***ing witch! I knew it!”

The clip ends with her taking a nasty fall.

The 31-year-old star told People magazine that someone slipped her the so-called "date rape drug" GHB.

“On the evening of the 25th, I went out with a group of friends to celebrate my birthday. While having drinks, I realized that something was not right as my behavior was becoming erratic and continued to intensify over the next several hours,” Barton said in the statement.

She added: “I voluntarily went to get professional help, and I was informed by their staff that I had been given GHB. After an overnight stay, I am home and doing well,” the statement continued. “I would like to extend a big thanks of gratitude to the professionals at Cedars-Sinai for their great care and professionalism. This is a lesson to all young women out there, be aware of your surroundings.”

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She said it happened when she was out celebrating her 31st birthday with friends.

Barton has a history of erratic behavior and once admitted she had had "a full-on breakdown" when she was 23, caused by overwork and a party lifestyle.

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