Legendary director Roman Polanski is once again being accused of "sexually predatory conduct" -- and the woman making the accusation is set to come forward today ... with a little help from Gloria Allred.
Allred and her mystery client are set to hold a press conference today in L.A. at 10:30 AM PST to explain the "legal significance of her allegations."
Polanski is currently under house arrest in Switzerland for that whole "skipping town before being sentenced for raping a 14-year-old back in 1977" thing.
Roman Polanski -- New Accuser to Come Forward
5/14/2010 4:10 AM PDT BY TMZ STAFF
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