Manson and Bianco began a long-distance relationship later in 2009, the suit reads.

Manson brought Bianco back to Los Angeles in 2011, ostensibly to appear in his feature film “Phantasmagoria,” although that project never came about.

During that visit, Manson did not allow Bianco to leave the house without his permission, chased her through her apartment with an ax, cut her with a “Nazi knife” without her consent, and photographed the cuts and posted the pictures online, even without hers The lawsuit claims consent.

“It took Ms. Bianco years to understand the extent of Mr. Warner’s physical, sexual, psychological and emotional abuse. Her career suffered as her mental health deteriorated, ”the suit reads. “To this day, she deals with complex post-traumatic stress disorders, anxiety, depression and panic attacks.”

The Associated Press generally does not identify anyone who claims to have been sexually assaulted, but Bianco said in a statement that she is going public to spread her allegations in the hope that others will do the same.

The lawsuit said Bianco feared for her safety at the time if she did not comply with Manson’s demands and did not go to the authorities. But her attorney, Jay D. Ellwanger, said she has now reached out and spoken to the FBI and local law enforcement.